deep treatment of sewage

• 污水深度处理

deep treatment of sewage的用法和样例：

例句

1. Backwashing is a critical part of effective operation of the novel aerobic filter used for wastewater tertiary treatment.
   好气滤池是一种用于污水深度处理的新型滤池。
2. The present paper described application development of immobilized cell technique to wastewater tertiary treatment.
   本文主要介绍了近年来固定化细胞技术在污水深度处理中的应用研究现状和发展前景。