ground lever oxygen breathing 地面呼吸氧气
lever under-ground weigh bridge 杠杆式地中衡
ground throw lever 地面扳道握柄
lever ground verify segment 操纵杆地上检验区段
ground drive transmission shift lever 地面驱动变速器变速杆
This means that it is an effective communications tool that can be used to lever action on the ground.
这意味着它是一个有效的社会工具，能被用作当地的杠杆。
Analyzing the moisture content balance with the rate of forest coverage increase in straight ground water lever fall. Around 29.9% of the rate of forest coverage environment factor stay best stage.
从水分平衡分析得出，森林覆被率高出一定值时，地下水位下降，在森林覆被率为29.9%左右时，环境因子处于最佳阶段。
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