Definition(s)
1) Removal of groundwater or surface water, or of water from structures, by gravity or pumping. 2) The discharge of water from a soil by percolation (the process by which surface water moves downwards through cracks, joints and pores in soil and rocks). (Source: GEMET - MGH / WHIT)
层级
Broader: 土地开垦
In other languages
English
drainage
French
drainage
Russian(俄语)
дренаж
Spanish
drenaje
Arabic(阿拉伯语)
صرف صحي
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