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我局因民选矿厂干燥机排出的烟尘,原经过“流卡斯收尘器”和“洗涤塔”两道除尘,但烟尘
Our bureau smokes dust discharged from the dryer of the democratized mines. It has been dedusted twice by the “Flow Casker Dust Collector” and “Scrubber Tower”