Lift off the first check valve cover. The check valve inside will come out with the cover and is attached with a bayonet type locking arrangement.是什么意思_Lift off the first check valve cover. The check valve inside will come out with the cover and is attached with a bayonet type locking arrangement.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句