...排水坡向；土方调配 [gap=346]; Terrain data diagram; Discrete points; Elevation control points; Turkmen grid; Drainage slope to; Earthwork allocation ...
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排水坡向
Drainage slope direction
以上为机器翻译结果，长、整句建议使用 人工翻译 。
经常有积液的地面不透水，并坡向排水系统，其废水纳入生产、检修污水收集系统。
The ground with regular accumulated liquid shall be impermeable and the wastewater of slope direction sewer age system shall be collected by production and repair wastewater gathering system.
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