combined improvement

• 联合处理

combined improvement的用法和样例：

例句

1. The desirability of combined industrial and municipal waste treatment can be debated endlessly on a theoretical basis.
   工业和城市污水联合处理的合理性，在理论上尚有争议。
2. The second advantage is that combined treatment enhances the biological waste treatment processes.
   第二个优点是，联合处理促进了生物净化过程。