短語詞組短語discharge valve deck 放泄閥蓋inlet valve deck 進給閥蓋valve deck plate 閥板;閘板valve deck plate type piston 閥板式活塞泵deck valve 臺閥;甲板閥hermetic deck valve 封密甲板閥deck drain valve 甲板泄水閥 返回 valve deck