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protecting natural environment
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  保护自然生态环境
     Aimed at the question of the new settlements in Three Gorges, the sustainable develop- ment ideology is applied to analysis the relationship between the settlements and regional develop- ment, society progress, economy development, protecting natural environment, inheriting terri- torial culture, exploring new architectural type and the experience is summarized in order to bring some inspiration to our future work.
     针对三峡库区新建聚落的现状,运用可持续发展的思想,从聚落与区域发展、社会进步与经济发展、保护自然生态环境和探索新的建筑类型出发,尝试分析了其成功和不足之处,总结经验,希望给我们今后的工作带来一些启示.
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  “protecting natural environment”译为未确定词的双语例句
     It is emphasized in the tenth five-year program of our China, that in the period of the tenth five-year program, the principle of the environment polity should be developing economy by using the least resources and environment price, and protecting natural environment by using least economy cost.
     技术的环境效应评价是将技术评价和环境评价结合在一起,通过将技术对环境影响的货币化表示纳入到技术的经济效益评价中,根据一定的标准进行评价分析的技术评价方法。
短句来源
     Based on the example of a city in Hainan province, the author expounds some viewpoints and methods of protecting natural environment and constructing ecological city in urban planning process.
     作者以海南省通什市为例,分析并阐述了城市规划中保护自然环境、创建生态城市的有关观点和手法。
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     On the basis of protecting natural environment and taking improving and increasing living quality as aim the sustained development strategy encourages the economic rising.
     可持续发展鼓励经济增长 ,以保护自然为基础 ,以改善和提高生活质量为目的。
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     issues, and raises several counter measures of strengthening legislative management, carrying out investigation for pollinated organisms resources, protecting natural environment, reducing chemical pollution, and watching out for organisms invading, etc.
     提出了加强立法管理 ,开展传粉生物资源的调查 ,保护自然环境 ,降低化学污染 ,警惕生物入侵等对策
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     der the inclined crossing situation of landform. It introduces in details main calculative simulated process of half-embedded and half-uncovered tunnel,providing a new method for reducing side slope excavation of ar? caded tunnel of mountainous expressway,protecting natural environment to the maximum degree and also for design & construction of arcaded tunnel at steep slope section.
     提出了连拱隧道在地形斜交情况下半明半暗的设计思路,介绍了半明半暗连拱隧道设计的主要计算模拟过程,为山区高速公路连拱隧道减少边坡开挖,最大限度地保护自然环境,为陡坡地段连拱隧道的设计施工提供了一种新方法。
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     (3) protecting natural vegetation;
     (3)保护天然林草植被;
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     Natural.
     Natural(天然等同)相近。
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     4.protecting the natural and cuItural landscape.
     4.保护自然及文化景观。
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     Protecting the Natural Environment and Fauna and Flora in the Antarctic
     保护南极洲的自然环境和生物
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     On the Natural Obligation
     论自然债务
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The urban natural environment is an important part of urban ecological system. Based on the example of a city in Hainan province, the author expounds some viewpoints and methods of protecting natural environment and constructing ecological city in urban planning process.

城市的自然环境是城市生态系统中的重要组成部分。作者以海南省通什市为例,分析并阐述了城市规划中保护自然环境、创建生态城市的有关观点和手法。

Both the Yongxing Island and the Shi Island are situated together on the same top of a coral reef in northeastern Xisha Islands. The Yongxing Island is a new lime-sand in constituent and was formed in the late Holocene. The Shi Island used to be a sand-hill in late Epipleistocene, but now it is a rocky islet (an old lime-sand islet) that has been surrounded by modern coral reefs since middle Holocene. After middle Tertiary, this region has always had tropical marine monsoon climate. In seas tropical marine organisms...

Both the Yongxing Island and the Shi Island are situated together on the same top of a coral reef in northeastern Xisha Islands. The Yongxing Island is a new lime-sand in constituent and was formed in the late Holocene. The Shi Island used to be a sand-hill in late Epipleistocene, but now it is a rocky islet (an old lime-sand islet) that has been surrounded by modern coral reefs since middle Holocene. After middle Tertiary, this region has always had tropical marine monsoon climate. In seas tropical marine organisms abound, while on land tropical plants are luxuriant, with many bird species. The soil of both islands is of phosphatic lime type. In long term development planning,efforts must be made on appropriate regulation and management in order to protect natural environment and optimum exploitation of the affluent natural resources on the two islands.

永兴岛和石岛同在一个礁盘上.永兴岛是全新世晚期形成的新灰沙岛.石岛原是晚更新世晚期形成的古沙山,今是一个全新世中期后被现代礁坪包围的岩石岛(老灰沙岛).本区属热带海洋季风气候,海中热带海洋生物繁多,岛上热带植物繁茂,鸟类也多,土壤为磷质石灰土.自然资源丰富,人们需要作出长期的开发规划,加强管理和自然环境保护.

Through comprehensive analyses of the Quaternary geology, historical literatures and modern observations in northern China. the authors thought that the geneses of desertification are different in different periods and different bine scales.1 Pleistocene The widely spreaded Pleistocene stratigraphic profiles, characterized by alternately overlapped aeolian sand, loess and palaeosol, are the direct evidence of desertification of the Pleistocene in the studying regions. The stratigraphic profile located at Yulin...

Through comprehensive analyses of the Quaternary geology, historical literatures and modern observations in northern China. the authors thought that the geneses of desertification are different in different periods and different bine scales.1 Pleistocene The widely spreaded Pleistocene stratigraphic profiles, characterized by alternately overlapped aeolian sand, loess and palaeosol, are the direct evidence of desertification of the Pleistocene in the studying regions. The stratigraphic profile located at Yulin horticultural farm at southeast fringe of Mu Us Desert clearly recorded 15 positive processes, 18 reverse processes and 16 positive-reverse conversion processes since 1.1 Ma B. P. All these processes corresponded to ten thousand to tens of thousand-scale climatic fluctuations revealed by the loess plateau and deep-sea oxygen isotope records, suggeshng that the alternations of the positive and reverse processes of the Pleistocene desertification in the study regions were mainly caused by the climatic changes which were controlled by earth orbit elements, while the influence of human activities were negligible.2 Holocene During the Holocene from 10 000a B. P. to 1900 A. D., the stratigraphic profiles suggests that there were 5 or 6 reverse processes and 6 or 7 posihve processes,with an average cycle of 1 500 a. The climatic changes indicated by the susceptibility in the same period also showed a dry-wet variations with roughly similar cycle.During the historic period, especially in the past 2 000 years the alternations of positive and reverse desertification in semiarid and subhumid regions in China was even more frequent and showed a good agreement with the warm-cold and dry-wet variations in the same period. This suggested that positive and reverse processes of desertification in the period in the studying regions were dominated by a cycle of one hundred years. Therefore the alternations of positive and reverse processes of desertification in the Holocene in the region were also controlled mainly by climate changes. During the Holocene the influence of human activities on desertification has gradually intensified and this is mainly manifested in two respects: First, social production activities destroyed vegetation and top soil, thus causing the positive processes of desertification. Second, through fencing off degraded lands, planting trees and protecting natural environment etc.The desertification in local places was reversed to some extent. However, the former was always predominant. Compared with climate changes. The influences of human activities on desertification only hold a subordinate position, in other words, hUman activities could accelerate or exacerbate the desertification processes caused by climate changes.3 At present Since 1900 A. D. the positive processes and reverse processes of desertification in the studying regions have been alternating at a shoder time-scale and reversed frequency. The development of the positive processes of desertification was also consistent with the climate changes indicated by temperature, precipitation and aridity in the same period. This shows that the climatic dry and humid degrees are the primary factors controlling the positive and reverse processes of desertification. However,only the aridification of climate is impossibe to make the desertification develop at present high velocity. Because the positive process of desertification balanced by the reverse process of desertification in wet years. Clearly, human activities play a very important role in accelerating and exacerbating the development of desertification. In the past great attention has been paid to the protection and rehabilitation of a few "points", while the anthrogenic destruction to the vast "regions" were ignored, and thus result in a situation, "points" were rehabilitated but "regions" were destroyed,and "greening couldn't keep up with desertification", as a whole, the desertification was becoming severe, although the desertified lands in local places were improved. At present the positive process

通过对我国北方半干旱和半湿润地区沙质荒漠化的综合分析后认为,第四纪期间不同时间尺度沙漠化的成因是有差异的。1万年前的更新世期间,人类对生态环境的破坏作用甚微,沙漠化的出现和逆转主要受地球轨道要素制约的万年以上时间尺度的全球气候变化控制;1万年来的全新世特别是近2000年的历史时期,人类对生态环境的作用已越来越大,但沙漠化仍然主要受制于千年和百年尺度的气候波动;20世纪以来的现代时期,沙漠化过程既受数十年或数年的干湿气候波动作用,也受到人类不合理的经济活动的影响,但后者是主要的。

 
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