2) If a stream is clear, it is because the source is clear
源清流清
4) From a pure fountain, pure water flows .
清泉流清水。
6) helical-flow clarification
旋流澄清
1.
In order to give a solution to the incomplete solid-liquid separation of metallic precipitate in conventional chemical precipitation and sand filtration process, a new post-treatment technology was developed for medium- and small-capacity of electroplating wastewater, in which helical-flow clarification was used in combination with diatomite pre-coat filtration process.
为解决传统化学沉淀砂滤工艺的金属沉淀物固液分离不完全、出水COD难以达标的问题,将旋流澄清与硅藻土预涂膜技术相结合,开发出一种新型的处理中小规模电镀废水的后处理技术。
补充资料：清流
1.清澈的流水。 2.喻指德行高洁负有名望的士大夫。 3.晩清统治阶级内部的一个政治派别的名称。他们评议时政，上疏言事，弹劾大臣，指斥宦官，对外反对列强蚕食，对内主张整饬纪纲。中法战争前后，清流繁衍为前后两辈。前清流奉军机大臣李鸿藻为魁首，后清流以户部尚书翁同龢为支柱。光绪帝亲政后，他们以拥帝相标榜，称为帝党，以别于当权的后党。 4.比喻政治清明。
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参考词条