自净作用（self purification）一般指受污染的物体经本身的作用达到净化或无害化的现象。分为环境自净、水体自净和土壤自净。
... 选择指数 selectivity index 自净作用 self purification 天然疏伐 self thinning ...
基于46个网页-相关网页
...区是不仅具有一定的湿地系统、林木系统，还应有清新的空气，而且可以充分发挥水体的自净作用（self-purification of water body）的水源保护区。这样的水源保护区可以说是水、陆、空三维立体式的空间，是实现水源安全保护的有力措施。
基于16个网页-相关网页
... automatic depuration 自净作用 Isolation and depuration of sugar 糖类制品的分离纯化方法 isolation and depuration of lipoid 脂类制品的分离纯化方法 ...
基于16个网页-相关网页
由于山溪与河流的水文和地质条件不同，所以它们对有机污染物的自净作用机理也很不一样。
Mountain streams are different from common rivers in hydrological and geological features. So different also are their self - purification mechanism to organic pollutants.
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.
应用推荐