介绍绿地、花坛的构造、排水系统的类型以及排水系统的设计计算方法。

Also the design and calculation of their water drainage system are added.

youdao

介绍绿地、花坛的构造、排水系统的类型以及排水系统的设计计算方法。

Also the design and calculation of their water drainage system are added.

youdao