... BM Bill Of Material 材料表 BOP Bottom Of Pipe 管底 B-P Beveled End —Plain End 坡口端.平端 ...
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管底以上的地下水位和管道接口的防渗施工质量是地下水渗入量大小的决定性因素。
The groundwater level above pipe bottom and anti-infiltration of pipe joint are the decisive factors affecting the groundwater infiltration rate.
在回填土地区进行管道施工，应根据回填土的性质，对管底及管顶的回填土进行处理。
During the pipeline construction in backfill soil area it is needful to treat backfill soil around pipeline according to property of backfill soil.
竖直放置的驻波管在共振频率下，位于其管底的微小颗粒群会在一定声压级下产生悬浮现象，即腾空而起，悬浮在波幅波节平面。
Under the frequency of resonance, small particles which are in the bottom of an upright standing wave tube will rise and move to the node, or loop planes, and keep suspending there.
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