“water self-purification”的概念、定义、翻译、参考文献-科学参考

单词	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。
随便看	gauge condition gauge control gauge covariance gauged linear sigma model gauge field gauge field strength gauge field theory gauge fixing gauge fixing term gauge freedom gauge function gauge function of a set gauge group gaugehead gauge interaction gauge invariance gauge invariant gauge-like function gaugemeter gauge of sets gauge particle gauge plate gauge potential gauge-preserving gauge pressure sensor

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