Whether it is low ground, mountainous or alpine meadow, the basic factor of their vegetation formation is water condition.
不论是低地草甸、山地草甸，还是高寒草甸，其植物群落发生的基本因素是充足的水分条件。
The single line-to-ground (SLG) faults in low ground current system may have many features.
小电流接地系统单相接地时有许多特点。
The road double lines multi-arch tunnel has such advantages as low ground area, easy connection with other lines and so forth, and is adopted more and more widely in high grade road construction.
公路双线连拱隧道以其占地少、与线路连接方便等突出优势在高等级公路建设中被越来越多的采用。
The road double lines multi-arch tunnel has such advantages as low ground area, easy connection with other lines and so forth, and is adopted more and more widely in high grade road construction.
公路双线连拱隧道以其占地少、与线路连接方便等突出优势在高等级公路建设中被越来越多的采用。
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