两种含铜电镀废水化学处理方法的比较研究 关键词：含铜电镀废水；化学处理方法；比较研究 [gap=731]Key words：Copper—containing plating wastewater；Chemical treatment method；Comparative study
基于16个网页-相关网页
与物理或化学处理方法相比，酶的作用有其特殊的优势。
There are special advantages of enzymes in processing pulp and paper by comparison with physical and chemical methods.
本研究采用特殊的化学处理方法，研制了新型低浓度标准气体包装容器。
For the preparation and applications of low concentration standard gas , the inside surface of CL2X gas vessel and its piece with coatings were studied.
采用化学处理方法，对木钙进行改性，对松香进行皂化，并与表面活性剂进行复合。
Adopt the chemical method, carry on the saponification to the lignin sulfonic acid calcium, and compound with the surface-active agent.
应用推荐