In recent years, however, more stress has been placed on improving means of disposal of the solid residues from the municipal treatment processes.

但近些年，越来越重视改进城市废水处理过程中的固体残留物的处理方法。

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In recent years, however, more stress has been placed on improving means of disposal of the solid residues from the municipal treatment processes.

但近些年，越来越重视改进城市废水处理过程中的固体残留物的处理方法。

youdao