[鐵路] 回動閥桿 reverse cylinder valve stem: 回動汽缸閥桿stem valve: 桿閥valve stem: 閥門桿; 閥轉(zhuǎn)桿, 閥桿; 氣門桿reverse valve: 回到閥; 回動閥; 可逆閥reverse lever latch spring stem: 回動桿閂彈簧桿下載手機詞典可隨時隨地查詞查翻譯