The dust, soot and SO2 were identified as the key pollutant factors.
确定了转炉炼钢的重点污染因子是粉尘、烟尘和SO2等。
The key to treating waste water of polyester production is to control the source discharge and reduce the abnormal pollutant.
聚酯生产的废水处理关键是要控制源头排放，减少非正常的污染物。
There is an obvious gap with the developed countries in term of key indexes such as comprehensive energy consumption, pollutant discharge, and resource recovery and recycling rate.
综合能耗、污染物排放、资源回收利用率等关键指标与发达国家差距明显。
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