短語詞組短語discharge e valve 排出閥;排氣閥discharge -valve plug 排出閥螺塞discharge shutoff valve 排氣截止閥discharge line valve 排氣琯線閥;[機(jī)]排氣截止閥;排氣截止閥pump discharge shutoff valve 泵出口截止閥discharge check valve 排出止逆閥;排氣單曏閥discharge e valve spindle 放泄閥軸discharge e valve seat 放泄閥座discharge gate valve 卸料牐門 返回 discharge valve