water waste 废水
- It is a key problem to settle water waste first allocation based on equity principle.
如何实现水污染物目标总量初始分配的公平性是要解决的关键问题。 - And electrolysis method using chemical precipitation of copper from copper ammonia water waste.
本文采用化学沉淀法和电解法从铜氨废水中回收铜。 - Water crisis has again sounded warnings in China because of co-existence of serious situation of water waste and pollution in urban areas.
针对目前我国城市缺水形势严峻,同时又存在大量浪费水和水污染的现象,再一次敲响了水危机的警钟。
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