surface drain valve 地面转样阀
surface water drain 地面水渠 ; 地面排水 ; 地面水排泄
surface drain detail 地表排水沟
system of surface drain 地表排水系统
Surface drain collection systems 地表排水收集系统
drain surface 漏表面
It is held there by the force of surface tension without which water would drain instantly from any wet surface, leaving it totally dry.
它是由表面张力的力量保持的，没有它，水会立即从任何潮湿的表面流失，使它完全干燥。
That can include beams, posts, drain lines, water piping or surface-mounted wires.
包括横梁、柱子、排水管道、供水管道或表面贴装线。
In a minute the whirl extends from surface to drain, animating the whole basin.
不一会儿，漩涡从水面扩展到槽底，带动了整个水槽里的水。
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