1. 排水管：scrap tallow 油渣 肥肉油 | drainpipe 排水管 | wireless relay broadcasting 无线电转播

2. 雨水管,落水管：gutter 排水沟 | drainpipe 雨水管,落水管 | ceiling 天花板

3. 出液管：2.机脚machine leg | 3.出液管drainpipe | 4.底盘chassis

4. 排液管：downwardsangleofvisibility 下视角 | drainpipe 排液管 | drainvalve 排放阀

1. 雨水管;排水管
    A drainpipe is a pipe attached to the side of a building, through which rainwater flows from the roof into a drain.

drainpipe

    e.g. He evaded police by climbing through a window and shinning down a drainpipe.
           他翻窗从下水道管子爬下，从而躲过了警察。

1. a pipe through which liquid is carried away

    Synonym: drainwaste pipe