排水管道

drainage wind───重力风

drainage winds───流泄风

drainage channels───排水沟；下水道（drainagechannel的复数）

drainage basin───（美）（河流的）[水文]流域；流域盆地

drainage channel───[建]排水沟，下水道

drainage ditch───n.排水沟

drainage holes───排水孔（drainagehole的复数）

For construction practice, the paper analysed some problem in waterproof, drainage design and construction of freeway communication conduit, proposed some methods for solving the problem.───主汽门阀杆及调节汽阀阀杆漏气，前后汽封疏水等都引入集水管再排入地沟。

The characteristics of new-type plastic water supply and drainage conduit and its application───新型塑料给排水管材的特点及应用前景

Application of high pressure jet grouting technique to pressure drainage conduit reinforcement projects───高压喷灌浆技术在压力排水管道加固工程中的应用

• drainage conduit
• drainage system