Water and gas are delivered, and sewage removed, via vertical steel pipes in the non-rotating base.

自来水和天然气的传递，污水的排放，都是通过一个在非。

youdao

Water and gas are delivered, and sewage removed, via vertical steel pipes in the non-rotating base.

自来水和天然气的传递，污水的排放，都是通过一个在非。

youdao