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1)  recreation ecological impact
游憩生态冲击
2)  impact of recreation
游憩冲击
3)  recreation ecology
游憩生态
4)  ecological recreation
生态游憩
5)  impacts of tourist activities
游憩活动冲击
1.
This paper researches the level of soil environmental responses to the impacts of tourist activities in the Jinyun mountain of Chongqing by studying the soil single-factor change rate and the soil environmental response index based on field investigation and experimentation.
土壤作为旅游区自然环境的构成要素,是游憩活动冲击的主要对象。
6)  eco-recreation zone
生态游憩区
1.
Based on the author s understanding of the concept and meaning of recreation and eco-tourism, the paper starts with a definition of urban eco-recreation, probes into the principles that should be followed to construct eco-recreation zone on Chongming island, and studies its development and product design.
基于对游憩和生态旅游概念及内涵的理解,本文对都市生态游憩进行了界定,探讨了崇明岛建设生态游憩区应遵循的原则,并对崇明岛生态游憩开发及产品设计进行了研究。
补充资料:标准操作冲击电压波形(见冲击电压发生器)


标准操作冲击电压波形(见冲击电压发生器)
standard switching impulse voltage waveform

  b .oozhun CooZuo ChongJld,onyo boxlng标准操作冲击电压波形(standard switchingimpulse voltage waveform)见冲击电压发生器。
  
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