短语词组短語poppet type valve 提陞閥poppet throttle valve 雙座節流閥poppet t valve 提陞閥poppet foot valve 提陞式底閥poppet relief valve [機]提動式溢流閥poppet -valve 提閥poppet discharge valve 提動排泄閥 返回 poppet valve