chemical cxygen demand是什么意思 chemical cxygen demand怎么读
chemical cxygen demand的相关资料
chemical cxygen demand的用法和样例
- The results showed that magnesium hydroxide had good effect for decoloring and suspended substance removal,meanwhile,removal rate of chemical oxygen demand was also quite high.
研究结果表明,氢氧化镁在印染废水的处理过程中,具有良好的脱色效果和悬浮物的去除效果,对化学需氧量的去除率也相当高。
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