基本解释[物理学]方向螺线管操作阀词组短语短语solenoid operated directional valve 电磁换向阀SOLENOID OPERATED DIRECTIONAL CONTROL VALVE 峰昌电磁换向阀LowWatt Solenoid Operated Directional Valve 低瓦特电磁换向阀directional solenoid operated valve更多词组专业释义物理学方向螺线管操作阀