来源 :Sciences in Cold and Arid Regions | 被引量 : [!--cite_num--]次 | 上传用户:[!--user--]
【摘 要】
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Understanding how the transpiration of this vegetation type responds to environmental stress is important for determining the wa-ter-balance dynamics of the rip
This paper describes the economic and technological benefits of installing continuous welded rail(CWR) track on sharp(radius ≤ 300 m) railway curves. A new for
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