effluent control

Biochemical Oxygen Demand is an important control index in wastewater effluent, but it takes longer time ( 5 days) for its determination, while the time for measuring the Chemical Oxygen Demand is shorter ( 10 hours). Would there be any stabilized relationship between the two?

生化耗氧量是废水排放的重要控制指标，但它的测定需要时间较长（五天），而化学耗氧量的测定时间较短（几小时），这两者是否存在稳定的关系？

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There is only, at best , random monitoring of wastewater effluent by the pollution control agency.

污染控制机关充其量只是偶尔检查工厂的排水情况.

词典精选例句

To control effluent discharge from Lamma Power Station within licence limits.

将南丫发电厂的污水排放控制在牌照的规限之内.

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To make the effluent meet standard and carry out real-time control, the CASS was transformed.

旨在针对制药废水改造CASS工艺使出水达标,并实现主体的 实时 控制.

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Phenol content in wastewater effluent of resin or additive plants exceeding the national criteria hard to control is an urgent problem.

合成树脂及其添加剂的生产的排放废水，苯酚含量超过国家规定排放标准且难以控制的问题亦急待解决。

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