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water self-purification
释义
water self-purification
Encyclopedia
工学
环境自净
释
water self-purification
水体自净
受污染的水体在物理、化学、生物等作用下,污染物浓度逐渐降低,经一段时间后恢复到受污染前状态的自然现象。有时专指水体中微生物氧化分解有机污染物而使水质净化的作用。
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