undershot-type wasteway

例句：

1. 1. The undershot-type wastewater treatment system is designed to efficiently remove pollutants from the water.
   这种下溢式废水处理系统设计用来高效地从水中去除污染物。
2. 2.The underflowing system was installed at the factory to reduce the amount of wastewater discharged into the environment.
   工厂安装的下溢式系统旨在减少排放到环境中的废水量。
3. 3. The underflowing device has proven to be a cost-effective solution for managing industrial wastewater.
   这种下溢式装置已被证明是管理工业废水成本效益高的解决方案。