短語詞組短語shuttle type valve 往複式閥shuttle control valve 往複式操縱閥門shuttle check valve 梭式止廻閥automatic shuttle valve 自動關閉閥cooling shuttle valve 冷卻梭閥exhaust shuttle valve 排氣梭閥shuttle valve spool 往複閥滑閥track motor shuttle valve 履帶馬達梭閥moldboard shuttle valve 模板梭閥 返回 shuttle valve