第一型抽樣 pocket type air sampling i trument: 袖珍空氣取樣儀sampling type: 采樣種類type of sampling: 抽樣類型air sampling-type detector: 空氣采樣式探測(cè)器horizontal-type sampling mill: 臥式試樣磨機(jī)下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯