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1978-2018年中国旅游业发展的地理格局 认领
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作者 张城铭 翁时秀 保继刚 《地理学报:英文版》 SCIE CSCD 2020年第3期487-507,共21页
Since the reform and opening-up policy launched in 1978,the number of inbound tourists increased from 1.8 million in 1978 to 139.5 million in 2017,and that of domestic tourists increased from 344 million in 1991 to 5 ... Since the reform and opening-up policy launched in 1978,the number of inbound tourists increased from 1.8 million in 1978 to 139.5 million in 2017,and that of domestic tourists increased from 344 million in 1991 to 5 billion in 2017.This article conducts research on how the geographical pattern of China’s tourism has evolved in the last four decades on the national-scale and regional-scale,for rare studies before could focus on such an extended date and utilize inbound and domestic tourism data simultaneously.Grounded on viable datasets and multiple vibrant data analysis approaches(including the Gini coefficient,primacy index analysis,hot spot analysis and Pearson correlation analysis),this article unpacks triple vital realities.(1)The overall geographical pattern of China’s tourism development can arguably summarize as“high in the eastern and low in the western part,high in the southern and low in the northern part.”Meanwhile,China’s inbound tourism has long shown a pattern of polarized distribution;While,domestic tourism has experienced a shift from the polarized distribution to the equilibrium distribution.(2)According to the features and characteristics,China's tourism development can be divided into four stages.They are precisely the initial modern tourism stage(1978–1988),the domestic tourism cultivating stage(1989–1996),the rapid development stage(1997–2007)and the new normal stage(2008–present).(3)This article also identified multiple factors underlying the inbound and domestic tourism development in China,including policies,management systems,tourism demand,tourist attractions,economic level,consumption level,industrial development,investment status,traffic conditions,accommodation services,intermediary services and degree of openness. 展开更多
关键词 reform and opening-up tourism development spatial pattern development stage influencing factor China
Factors Affecting Community-Based Tourism Development and Environmental Protection: Practical Study in Vietnam 认领
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作者 Nguyen Thi Minh Phuong Nguyen Van Song Tran Xuan Quang 《环境保护(英文)》 2020年第2期124-151,共28页
Community-based tourism (CBT) is considered as one of the typical types of tourism towards sustainable development with three important goals such as bringing back economic benefits, protecting natural environment and... Community-based tourism (CBT) is considered as one of the typical types of tourism towards sustainable development with three important goals such as bringing back economic benefits, protecting natural environment and preserving indigenous cultural values. Therefore, this paper analyzes the factors that affect community ecotourism development associated with environmental protection in emerging economies, including Vietnam, by the method of key and community tourism potential value assessment with 721 sample surveys. In this paper, we have applied to assess the key factors of tourism in Vietnam and other key points to have more comprehensive solutions to promote the development of community-based tourism with environmental protection. The article has used guest-based approach and method of assessing the key success factors. The results of researching factors to develop community tourist (impacting tourist community needs of tourists) by running Logit function have shown the great influence of factors such as: environmental protection (influence factor +3.585780, with a statistical significance of 99%), security and safety (+3.024816—statistical significance 99%) followed by infrastructure conditions & facilities for the community based tourism, the level of information etc… for your community based tourism needs. From the research results, we propose the following policy groups: 1) Developing guidelines for CBT, the first step as a basis for the development of community based tourism laws later;2) Policies related to the implementation of planning, development of key community tourist areas and destinations;3) Policies related to the development of community-based tourism associated with the protection of natural and cultural environments;4) Policies related to tourism management;coordinating monitoring of community tourism resource points;policies related to the local community in community tourism development;5) Policies related to human resource development;promotion work;developing community based tourism 展开更多
关键词 COMMUNITY TOURISM Development of COMMUNITY-BASED TOURISM Environment Protection VIETNAM
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The Case for Integrative Sustainable Development Practice Based on the Minas Conga Gold-Mining Experience in Peru 认领
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作者 Timothy J. Downs Andrea Cabrera Roa +3 位作者 Katherine Chyna Dixon Phyllis Duff Eric Pasay Hannah Silverfine 《地球科学和环境保护期刊(英文)》 2020年第5期17-40,共24页
Mining projects are among the most impactful development projects, and the most controversial. The Conga Mining Project, proposed by the U.S. based Newmont Mining Corporation, in partnership with Minas Buenaventura, w... Mining projects are among the most impactful development projects, and the most controversial. The Conga Mining Project, proposed by the U.S. based Newmont Mining Corporation, in partnership with Minas Buenaventura, was slated for the Cajamarca region of Peru. Since the Environmental Impact Assessment (EIA) was completed in 2010, controversy has escalated: public protests have precipitated a political crisis for President Humala, with several ministers resigning. The proposed project would have been made located approximately 73 km northeast of the city of Cajamarca, in the northern Peruvian Andes, in the district of Sorochuco, within an area defined by four major lakes, headwaters of rivers, and wetlands. Despite findings of “no significant impact” by the 2010 EIA, the project is currently postponed indefinitely due to the public backlash, international attention, and questions of integrity surrounding environmental and social concerns. We use the Conga Mining case to interrogate business-as-usual (BAU) design, assessment, planning, implementation and monitoring practices for extractive development in Peru, and suggest alternatives. Our analysis is based on an integrative framework that is empirically based (previously developed by the authors), one with a greater likelihood of improving sustainable development and the equity of positive and negative impacts among stakeholders. Suggestions are tailored to the setting: we pay special attention to the climate-change and socio-political contexts of Peru. We seek to exploit a shifting political landscape that is resisting BAU and countering the systematic disenfranchisement of vulnerable populations by extractive resource industries. These appear to be enabling conditions to promote the adoption of a capacity building, socio-technical enterprise approach to framing and designing sustainable development projects in Peru, with implications beyond. 展开更多
关键词 Peru MINING SUSTAINABLE Development EIA Capacity Building
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Technical status and development direction of workover operation of PetroChina 认领
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作者 LEI Qun LI Yiliang +7 位作者 LI Tao LI Hui GUAN Baoshan BI Guoqiang WANG Jialu WENG Dingwei HUANG Shouzhi HAN Weiye 《石油勘探与开发:英文版》 2020年第1期161-170,共10页
Through a comprehensive review of the development status of workover technology of PetroChina Company Limited(PetroChina), this paper presents the connotation of workover operation under the background of the new era,... Through a comprehensive review of the development status of workover technology of PetroChina Company Limited(PetroChina), this paper presents the connotation of workover operation under the background of the new era, the latest progress of workover operation in the respects of equipment, tools, technology and the construction of information and standardization. The gaps between PetroChina and foreign counterpart in workover technology are as follows: the level of automation and intellectualization of tools and equipment is relatively low, the snubbing operation in gas wells characterized by HT/HP and high H2 S is lagged behind;water plugging in the long horizontal wellbore needs to be further developed, coiled tubing and its relevant equipment for ultra-deep well operation has to be optimized;informationization, standardization and big data application of workover operation need to be started. Based on this as well as the development status of workover technology in China and the technical difficulties faced in the future, eight suggestions for future development are put forward:(1) strengthen the dynamic understanding of reservoir and improve the pertinence of workover schemes;(2) develop the general overhaul technology in a systematical way to tackle issues of seriously problematic wells;(3) put more efforts into the research of horizontal well workover operation and develop relevant technology for long horizontal section operation;(4) improve the snubbing technology and extend its applications;(5) expand the capacity of coiled tubing operation and improve the level of special operations;(6) develop automatic workover technology into the field of artificial intelligence;(7) promote clean operation in an all-round way and build green oil and gas fields;(8) perfect the informationization construction to realize the sharing of workover resources. 展开更多
关键词 WORKOVER operation WORKOVER equipment WORKOVER TOOLS WORKOVER TECHNOLOGY DEVELOPMENT STATUS DEVELOPMENT direction
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Intellectual Property Protection and High Quality Development of Radix Glycyrrhizae for Treatment of COVID-19 认领
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作者 Yuanpeng SUN Yanling SUN +2 位作者 Zheng CHENG Yusi LIU Zhe WU 《亚洲农业研究:英文版》 2020年第5期1-6,共6页
Radix Glycyrrhizae is the dominant native medicinal material variety in the north and northwestern medicinal materials producing areas.It is a main Chinese medicine of effective TCM drugs and formulas for the treatmen... Radix Glycyrrhizae is the dominant native medicinal material variety in the north and northwestern medicinal materials producing areas.It is a main Chinese medicine of effective TCM drugs and formulas for the treatment of new coronavirus disease(COVID-19).This paper introduces the medicinal value of Radix Glycyrrhizae,involving the labeling,cultural heritage,and creative intellectual property rights of the Chinese medicinal materials,analyzes the poverty-stricken areas that are ecologically suitable for Radix Glycyrrhizae cultivation,and the superior counties and production bases of the Chinese medicinal materials.Besides,mainly from the aspects of perfect intellectual property rights,the establishment of authentic medicinal material production bases,and the construction of quality control systems,etc.,it discusses the rural revitalization strategy and the development strategy of traditional Chinese medicine(TCM),agricultural intellectual property protection and high-quality development strategy of Radix Glycyrrhizae. 展开更多
关键词 Radix Glycyrrhizae New coronavirus disease(COVID-19) Effective drugs Chinese medicinal materials High quality development Rural revitalization strategy TCM development strategy
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试论思想政治教育在人的全面发展中的作用 认领
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作者 胡敏 叶湘虹 《中国多媒体与网络教学学报:电子版》 2020年第7期243-244,共2页
思想政治教育与人的全面发展是相互联系、相互作用的,人的全面发展是思想政治教育的目的和归宿,思想政治教育是实现人的全面发展的重要途径。新时代新使命新要求,思想政治教育要通过丰富精神需要;促进个性化发展;树立创新精神;提高综合... 思想政治教育与人的全面发展是相互联系、相互作用的,人的全面发展是思想政治教育的目的和归宿,思想政治教育是实现人的全面发展的重要途径。新时代新使命新要求,思想政治教育要通过丰富精神需要;促进个性化发展;树立创新精神;提高综合素质四个方面促进人的全面发展。 展开更多
关键词 ideological and POLITICAL EDUCATION all-round development of HUMAN BEING effect
How to Promote the New Energy Vehicles under China’s “Internet plus” Initiative: A Review 认领
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作者 Fan Yang Pinjie Xie Bowen Xiang 《能源与动力工程(英文)》 2020年第5期154-181,共28页
Under the background of the rapid development of the Internet, new energy vehicles (NEVs) have ushered in an excellent development opportunity. With the subsidy policy exiting, new energy vehicles are facing unprecede... Under the background of the rapid development of the Internet, new energy vehicles (NEVs) have ushered in an excellent development opportunity. With the subsidy policy exiting, new energy vehicles are facing unprecedented challenges. One purpose of stimulating the NEVs through “Internet plus” initiative is to promote diversification of vehicle energy systems and advance industrial upgrading and transformation. On the premise of “Internet plus”, the paper analyses the obstacles and opportunities of new energy vehicles from four aspects, and proposes a promoting development model which includes management mode and profit mode, and constructs a promoting development framework which is about three stages of new energy vehicles. Finally, from the perspective of the new energy vehicle charging, the paper puts forward some policy advice to promote industrialization and popularization of new energy vehicles in China. 展开更多
关键词 New Energy Vehicle CHARGING PILE The INTERNET PLUS Development Model
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SWMM的校园区降雨径流污染及LID控制模拟 认领
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作者 周明来 潘璐 +1 位作者 李泽实 刘瑞芬 《湖北工业大学学报》 2020年第1期79-85,共7页
为研究武汉市校园区降雨径流污染负荷及其控制措施对城市通江河流水环境的治理作用,以武汉市南湖排水片区内湖北工业大学及巡司河为例,通过室外监测不同降雨事件下校园区内不同下垫面类型降雨径流过程,以此为基础进行SWMM建模,模拟各典... 为研究武汉市校园区降雨径流污染负荷及其控制措施对城市通江河流水环境的治理作用,以武汉市南湖排水片区内湖北工业大学及巡司河为例,通过室外监测不同降雨事件下校园区内不同下垫面类型降雨径流过程,以此为基础进行SWMM建模,模拟各典型年校园区降雨径流污染负荷,并评估海绵化改造(即实施LID措施)情景下校园区降雨径流污染入河削减效果。结果表明:武汉市校园区年降雨径流负荷在各典型年下存在差异,表现为:丰水年>平水年>枯水年。校园区平水年TSS、CODMn、TN、TP降雨径流污染负荷分别为42.64t、12.24t、1.24t、0.058t,占校园区生活污水污染负荷的22.17%、11.09%、1.43%、0.67%。对校园区实施绿色屋顶、透水路面、生物滞留池等LID措施后,一年一遇和十年一遇2h降雨事件所产生的各污染物负荷削减率范围分别为42.31%~43.95%和30.61%~36.63%,因为LID对一年一遇降雨事件的径流总量削减率更高(43.23%),因而其污染物负荷削减效果更好。 展开更多
关键词 降雨径流 污染负荷 STORM Water Management Model Low Impact Development
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Evaluation and Coordinated Development Measurement of the Construction of Marine Ecological Civilization in Coastal Areas—Taking Shandong Province, China as an Example 认领
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作者 Jun Ma 《地球科学和环境保护期刊(英文)》 2020年第3期37-54,共18页
This paper selected 25 evaluation indexes from the three aspects of marine ecological economy, marine ecological environment and marine ecological society to construct an evaluation index system of the construction of... This paper selected 25 evaluation indexes from the three aspects of marine ecological economy, marine ecological environment and marine ecological society to construct an evaluation index system of the construction of coastal marine ecological civilization, using the analytic hierarchy process (AHP) and entropy value method to determine evaluation index weights, and measured the construction level of marine ecological civilization in Shandong Province during the period of 2006-2016. The results showed that the construction level of marine ecological civilization in Shandong Province during 2006-2016 as a whole is on the rise. In terms of the increase of the scores of each subsystem, the development of marine ecological society increased the most, followed by the development of marine ecological economy, while the development of marine ecological environment was relatively slow. This paper also analyzed the coordinated development level of the paired subsystems such as the marine ecological economy plus marine ecological environment, marine ecological society plus marine ecological environment and marine ecological economy plus marine ecological society in Shandong Province during the period of 2006-2016 by using the coupling coordination analysis model. The results showed that the level of coordinated development between the three pairs of subsystems has basically gone through the development process from low coordination to moderate coordination, and finally to high coordination. 展开更多
关键词 MARINE ECOLOGICAL CIVILIZATION EVALUATION Index System COORDINATED Development Empirical Analysis
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煤矿区煤层气开发利用新技术现状及发展趋势 认领 被引量:3
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作者 刘见中 孙海涛 +1 位作者 雷毅 曹偈 《煤炭学报》 EI CAS CSCD 北大核心 2020年第1期258-267,共10页
“十二五”以来,我国煤矿区煤层气开发利用技术取得了巨大的进步,虽然我国煤矿数量由近20000对直线下降到了不足5800对,但煤层气产量仍由2010年的88亿m 3提高到了2018年的184亿m 3,利用率亦提升了10%,科技对产业的贡献巨大;但是也出现... “十二五”以来,我国煤矿区煤层气开发利用技术取得了巨大的进步,虽然我国煤矿数量由近20000对直线下降到了不足5800对,但煤层气产量仍由2010年的88亿m 3提高到了2018年的184亿m 3,利用率亦提升了10%,科技对产业的贡献巨大;但是也出现了单井排采产量低、气源分散性高等新的问题。因此,全面梳理了近10 a煤矿区地面抽采技术装备、井下抽采技术装备和煤矿区高、低浓度煤层气利用技术装备的科技创新及应用效果等,阐述了煤矿区煤层气开发利用在三级瓦斯地质分析技术、碎软低渗煤层地面井分段压裂顶板技术、煤层群分层控压联合排采技术、采动区地面L型顶板水平井技术、井下千米定向长钻孔技术、碎软煤层井下护孔钻进技术、智能化钻机远控钻孔技术、井下水力化压裂/割缝增渗技术等煤层气抽采技术及其配套装备最新进展和中高浓度煤层气深冷液化、低浓度煤层气分级压缩提浓、超低浓度煤层气蓄热氧化利用等煤层气利用装备的最新进展及技术指标。在此基础上,针对我国目前面临的深部开采、西部煤炭资源开发及高强度集约化开采等新特点,分类整理了束缚煤层气产业发展的技术瓶颈和发展趋势,提出了煤炭开采与煤层气开发协同规划和联合开发的技术思路等。 展开更多
关键词 煤矿区 煤层气 开发 利用 发展趋势
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Spatial-temporal Characteristics of Green Development Efficiency and Influencing Factors in Restricted Development Zones:A Case Study of Jilin Province,China 认领
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作者 LI Ping TONG Lianjun +1 位作者 GUO Yanhua GUO Fuyou 《中国地理科学:英文版》 SCIE CSCD 2020年第4期736-748,共13页
Green development is an important issue of sustainable development in China.Due to the relatively backward economy and the fragile ecological environment,restricted development zones need to embrace green development.... Green development is an important issue of sustainable development in China.Due to the relatively backward economy and the fragile ecological environment,restricted development zones need to embrace green development.Taking 38 counties in Jilin Province as the empirical research objects,and based on cross-sectional data for each county in 2005,2010,and 2015,we accurately depicted the spatiotemporal evolutionary characteristics of green development efficiency(GDE)in restricted development zones of Jilin Province using the slacks-based measure-data envelope analysis(SBM-DEA)model.Moreover,the factors that influence GDE were further analyzed using the Tobit model.We found that:first,GDE showed a V-shaped trend in restricted development zones of Jilin Province.The differences in GDE in the eastern,central,and western Jilin Province increased gradually.Second,76%of counties in the restricted development zones had high or higher efficiencies.The resource-based cities were the main areas with low or lower GDE.Third,the economic development level was the core factor affecting GDE.Urbanization level had a significant negative effect on GDE in the restricted development zones.The effect of technological innovation level on GDE fluctuated,and we found that a‘backward mechanism’of technological innovation was beginning to form.Industrial structure and environmental governance had no significant effects on GDE. 展开更多
关键词 green development efficiency spatiotemporal evolution influencing factor restricted development zones Jilin Province
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Sustainable Development around Small Scale Mining Areas by the Development of Micro Hydro Power: Application Cases in Cameroon 认领
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作者 Fanyep Nana Antoine Gubong Takam Charles Bertrand +1 位作者 Kengne Signe Elie Bertrand Claudio J. C. Blanco 《电力能源(英文)》 2020年第3期36-48,共13页
Of all the precious metals buried in the Cameroonian subsoil, gold is certainly the longest exploited. It has longtime been the subject of artisanal exploitation. In 2014, the monthly national production was estimated... Of all the precious metals buried in the Cameroonian subsoil, gold is certainly the longest exploited. It has longtime been the subject of artisanal exploitation. In 2014, the monthly national production was estimated at around 170 kg. In these mining areas, people still live in a screaming precariousness of which one of the main causes is often the lack of electricity, because of the distance of these localities to the national electricity network. Cameroon has a great hydroelectric potential, but the access rate to electricity is still very low in isolate or rural areas of this country. The objective of this work is to show that it is possible to efficiently exploit gold in isolated areas and contribute to the sustainable development of these localities through the development of micro hydro power (MHP). The mining community of Tikondi in the East Region of Cameroon is the practical case study for an illustration. The results of this study show that the development of the MHP project can be developed with installed power of 87 kW, where the Banki-Michell turbine is recommended according to the Sulzer-Escher Wyss diagram. The investment cost evaluated at 79,832,775 FCFA (1 Euro = 656 FCFA). It is a profitable project with a maximum payback period of 8 years. This project can be easily funded by gold mining activity. That Tikondi’s MHP can make this village becoming attractive for others activities, improving the quality of education of children (there is not any school and lots of them do not go to school), the building of health centers and the quality of life in that locality and therefore contribute to their sustainable development too. 展开更多
关键词 MICRO HYDRO Power MINING Areas SUSTAINABLE Development
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Banking Sector Development and Agricultural Productivity in Central African Economic and Monetary Community (CEMAC) 认领
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作者 Chi Aloysius Ngong Kesuh Jude Thaddeus Josaphat Uchechukwu Joe Onwumere 《农业科学与技术:B》 2020年第2期68-82,共15页
There is high pressure for investment capital and financial services for agricultural activities necessary for poverty reduction,economic growth,sustainable development and food security.This study investigated the lo... There is high pressure for investment capital and financial services for agricultural activities necessary for poverty reduction,economic growth,sustainable development and food security.This study investigated the long-term causation between banking sector development and agricultural productivity in the six Central African Economic and Monetary Community(CEMAC)states from 1990 to 2018,hypothesizing no causation between banking sector and agriculture output.With the autoregressive distributed lag(ARDL)model and vector error correction model(VECM),the study demonstrates that banking sector and agricultural productivity in the CEMAC region are related.It implies long-run relationship exists between banking sector and agricultural productivity in the CEMAC zone.The results reveal that bidirectional causality exists between banking sector and agricultural productivity in the CEMAC region.This is insinuating that in the CEMAC region,agricultural productivity and banking sector development are operating in mutualism.The findings indicate the reason to establish the banking sector using proper macroeconomic,legal and regulatory policies to boost agricultural productivity by creating incentive systems that channel more credit to agricultural investment and promoting the banking system. 展开更多
关键词 Agricultural productivity banking sector development economic growth agricultural financing INVESTMENT sustainable development
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A Clinical Analysis of Physical and Neurological Development in very Low Birth Weight Infants with MEIR(Massage,Exercises,Intelligence training,and Rehabilitation training) 认领
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作者 Yonghong Deng Shulian Wang +2 位作者 Zhaohui Liu Qi Liao Yan Zeng 《临床护理研究》 2020年第4期55-60,共6页
Objective:This study aimed to investigate the application of MEIR(Massage,Exercises,Intelligence training,and Rehabilitation training)in Chinese VLBW infants and to observe its effects on infants’growth and deve1opme... Objective:This study aimed to investigate the application of MEIR(Massage,Exercises,Intelligence training,and Rehabilitation training)in Chinese VLBW infants and to observe its effects on infants’growth and deve1opment.Methods:Clinical data of 92 VLBW infants who were treated at the neonatal intensive care unit(NICU)of Loudi Centra1 Hospital were retrospectively analyzed.The patients were grouped as the MEIRgroup(n=47)and controls(n=45).Physical and neurodevelopment deve1opment were compared between the two groups.Results:There were differences in height and weight and head circumference between the two groups at all corrected ages(all P<0.05).Abnormal motions,reflexes,muscular tension,audio-visual reactions,and posture,and the total numbers of abnormalities of 3-,6-,9-and 12-corrected month-old infants in the MElRgroup were 1ower than in the control group(all P<0.05).The mental development index and psychomotor development index of 6-and 12-corrected month infants in the MEIR group were higher than in the control group(all P<0.05).Conclusion:MEIR could improve the physical and neurological developments of VLBW infants,reduce the incidence of adverse events,and improve their growth and development. 展开更多
关键词 Very low birth weight infants MEIR Physical development Neurological development
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Development Trend of Small Island District in Tropical Monsoon Region (Case Study: Ly Son and Phu Quy Island Districts, Vietnam) 认领
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作者 Hang Anh Nguyen Thi Thanh Hang Phan 《地球科学和环境保护期刊(英文)》 2020年第4期105-124,共20页
Ly Son (Quang Ngai province) and Phu Quy (Binh Thuan province) are two island districts in Vietnam that have similar natural characteristics;both are facing the issues of sustainable economic development. This researc... Ly Son (Quang Ngai province) and Phu Quy (Binh Thuan province) are two island districts in Vietnam that have similar natural characteristics;both are facing the issues of sustainable economic development. This research applied Man-Kendall model to estimate the trend of some socio-economic elements in these two island districts that have been collected during the period of 2002-2018. In general, socio-economic factors showed a tendency to increase recently. Ly Son island district has faster growth rate than that of Phu Quy because Phu Quy is farther from the mainland, more difficult to access and this island district does not own distinct local products. However, with the current development speed, Ly Son is facing several consequences such as insufficient water sources to meet the water demand and security instability due to the increasing number of visitors to the island. This research also proposed that, in order to sustainably develop the two island districts, there should be a specific structure for economic development orientation among sectors based on phased schedule. More importantly, tourism development planning should take capacity into consideration. Fishing practices should pay attention to methods and fishing equipment. Infrastructure investment for environmental protection as well as advocacy program to minimize the use of plastic bags should be done on a regular basis. 展开更多
关键词 Sustainable Development SMALL ISLAND DISTRICTS and TROPICAL MONSOON Region
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国内外集装箱跨运车发展情况及趋势分析 认领
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作者 马超超 赵重年 +2 位作者 王文强 高少杰 邱国权 《起重运输机械》 2020年第1期40-45,共6页
集装箱跨运车在集装箱运输业中发挥着至关重要的作用,广泛应用于港口码头,文中概述了其应用情况,详细介绍了跨运车国内外发展概况及特点,并对其未来的发展趋势进行了分析,为相关专用车辆后续研发提供了理论依据。
关键词 集装箱跨运车 发展情况 特点 发展趋势
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An Empirical Analysis on the Impact of Rural Financial Development on the Income Gap between Urban and Rural Residents in Heilongjiang Province 认领
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作者 Guanghe HAN Jiayu ZHOU +1 位作者 Siqi LI Zhiming SHEN