筒型過濾器 roll type stripping unit: 輥式摘棉鈴裝置roll-type stripping unit: 輥式摘棉鈴裝置filter type escape unit: 過濾式自救器filter unit: 過濾元件; 過濾裝置unit filter: 單位濾子下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯