surplus sludge

• 剩余污泥

surplus sludge的用法和样例：

例句

1. The effect of sludge residence time to residual leftover sludge output was studied.
   研究了污泥停留时间对剩余污泥产量的影响。
2. Based on the theory of hydrolysis acidification, a method to reduce excess sludge is introduced.
   以水解酸化理论为基础介绍了剩余污泥水解酸化的机理。