排水 meaning in English
drain off water; drain away water; dewatering 短语和例子
开沟排水 dig trenches to drain water off; 排水暗沟 seugh; seuch; 排水泵 wet-pit pump; discharge pump; draining pump; 排水泵站 drainage pumping plant; 排水槽 rhone; 排水道 drainageway; by-wash; drain(age) passage; 排水吨数 displacement tonnage; 排水阀 draw off valve; 排水干渠 arterial drainage; 排水干线 trunk sewer; 排水工程 drainage work; 排水涵洞 discharge culvert; 排水涵闸 drainage culvert and sluice; 排水湖 drainage lake; 排水机 draught engine; drainage machine; 排水井 [土] drain; dry well; drainage well; pumping shaft; catch basin; 排水孔 dale; weep hole; 排水口 [土] waterspout; freeing port; outfall; outlet; 排水能力 drainability; 排水区 catchment; catchment area; 排水渠 drainage canal; conduit; 排水渠道 discharge conduit; 排水系统 drainage system; sewerage; 排水闸 outlet sluice; drainage sluice
- Land must be well drained for some crops .
某些作物要求土地有良好的排水性能。 - Drainage usually has to be undertaken as a first operation .
第一步通常采取排水措施。 - Sewerage systems are either "separate" or "combined" .
排水系统有“分流制”和“合流制”。 - A layer of coarse gravel is often placed around the drain tile .
常常在排水瓦管周围铺一层粗石砾。 - Poor drainage causes deficient soil aeration and death of the roots .
排水不良能减低土壤的透气性，使根死亡。
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