短语词组短語bag -house dust filter 袋式除塵器bag filter dust collector 佈袋收塵器pulse -bag filter dust removal 脈沖佈袋除塵Bag Filter Type Dust Collector 袋式集塵機Dust filter bag 除塵濾袋filter bag of dust collector 除塵器濾袋 返回 bag dust filter