自净作用 purification ; self purification ; self-purification of water body ; automatic depuration
生物自净作用 biological self-purification
环境自净作用 environmental self-purification
海水自净作用 [海洋] sea water self-purification
河流自净作用 stream self-purification
水体自净作用 self-purification of waters ; water self purification
自净[作用]常数 self-purification constant
自净化作用 self-cleaning action
该负责人同时提醒广大市民，由于目前湘江流量偏少，湘江水的自净作用减弱，因而水质会有一定影响。
The official also reminded the general public, less than normal due to the current flow of the Xiangjiang River, Xiangjiang reduced self-purification of water, so water will have some impact.
绘制了自净曲线，计算了自净百分率和自净速率常数，并讨论了温度、河水流速及浊度对自净作用的影响。
Self-purification curves are presented, percentages and rate constants of the purification are calculated, and influence of temperature, flow rate, and turbidity on self-purification are discussed.
悬浮物中汞以腐殖质结合态为主，这与腐殖质对汞的螯合能力甚强，能对汞污染起自净作用有关，这对汞污染治理有参考价值。
Mercury in suspended matter is dominated by mercury bound to humus, because the strong combining ability of humus, this can be reference for mercury pollution harness.
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