purification for polluted stream
purification for polluted stream
净化污水
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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On-stream detention pond system (OSDPS) is a promising technology for polluted river purification and restoration, whose main purification mechanism was particle settlement.
河道滞留塘系统是以颗粒物沉降为污染物主要净化机理的污染河流净化技术。
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