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Dust collection technologies have been made great progress, bagfilter dust collection technologies have been made rapid pro gress especially. 除塵技術有了長足進步,袋式除塵技術的發展尤其迅速,微細粒子控制、降低排塵濃度、降低造價、降低能耗、擴大應用領域,是縂的發展趨勢。