Total quantity check of pollutant discharge was the most difficult elementary work of total quantity control of pollutant discharge.
排放污染物总量核定是排放污染物总量控制中的一项难度很大的基础工作。
The plan of total quantity control of pollutant discharge is being carried out in our country at present.
目前，我国正大力推行排放污染物总量控制计划。
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