paving and tiling
铺路和敷设排水瓦管
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。
A short length of pipe made of clay or concrete, used in sewers and drains.
瓦管用粘土或混凝土制成用于排水沟或下水道的短管道
A hole or pipe in a wall to allow water to run off.
墙上排水孔，墙上排水管
A pipe for carrying off water or sewage.
排水管排水或污水的管子
Install drain hose to vent tube at bottom of pump.
在水泵底部安装排放管到排水管。
Water escaped rapidly from the drainpipe.
水从排水管中迅速流出。
felt the drain starting to suck.
感到排水管开始吸水
blow-off branch
放水支管, 排汽支管
Effect Analysis of Squeezing Methane with High-Pressure Water Injection in Shallow Holes
工作面浅孔高压注水排挤瓦斯的效果分析
Zero Discharge Examples on the Treatment & Reuse of Corrugated Paper-Production Wastewater
瓦楞纸生产废水处理回用改造零排放实例
Analysis of Large Diameter Gas Drainage Well Casing Collapsing Strength Computation
大口径瓦斯排放井套管抗挤强度计算分析
Watts Air Gap Drains are designed to collect water that is being discharged by the relief valve, due to minor check valve fouling and/ or line pressure fluctuations.
美国瓦茨气隙排放装置适用于收集由于第二止回阀污染和/管道压力波动而从安全阀排放出来的水。
guttering and drain of glass for industrial use
玻璃排水槽和排水管,工业用
The drainpipe conducts excess water from the well.
排水管把多余的水从井中排出。
A pipe or channel by which liquid is drawn off.
排水管排掉液体的管或通道
Approved Drainage Authority Area Plan
核准排水监管区图则
One Pipe System
单管混接系统（排水）