[鐵路] 變向閥室蓋 reverse cylinder valve body cap: 回動(dòng)汽缸閥體蓋cap chamber: 底火室valve cap: 辨帽; 閥蓋; 氣門(嘴防塵)帽; 氣門嘴帽reverse valve: 回到閥; 回動(dòng)閥; 可逆閥valve chamber: 閥室; 活門室; 氣門室下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯