water drainage line 排水管线
vertical drainage line 竖向排水体
drainage pipe line 排水管道
line drainage 单向排水
drainage pipe line design 排水管网设计
Three-D Drainage Net Product Line 三维排水网生产线
The engineering characteristics, drainage design, layout of wastewater pump stations and equipment control of Guangzhou rail transit line 3 are introduced.
介绍广州市轨道交通3号线的工程特点及全线区间排水设计、废水泵站的设置及设备控制等情况。
After the transforming, the drainage ability of elevated roads of the Inner Ring Line has been raised.
通过改造提高了内环高架路的排水能力。
Line the POTS with pebbles to ensure good drainage.
在罐子里铺一层鹅卵石，以确保排水良好。
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