drainage works

• 排水工程

drainage works的用法和样例：

例句

1. Preliminary approach to environmental risk assessment of drainage projects during ollfield exploitation in Dnqing.
   大庆地区油田开发排水工程环境风险评价初探。
2. Architecture electrotechnician is a basic important technical technical course for the undergraduates majoring in water supply and drainage system.
   建筑电工是给水排水工程专业的一门实践性较强的专业基础课。