词汇	立井断面
释义	立井断面 shaft section area
随便看	pilot on board Piloto Pardo pilot open-development zones pilotoperated pilot operated pilot-operated pilot operated absolute valve pilot operated ball float valve pilot operated check valve pilot-operated check valve pilot operated compound-relief valve pilot operated control pilot operated controller pilot-operated controller pilot operated directional control valve pilot operated overflow valve pilot-operated pressure control valve Pilot-operated pressure valve pilot-operated regulator pilot operated relief valve pilot operated safety Pilot operated safety valve pilot-operated safety valve pilot operated solenoid controlled valve pilot operated solenoid valve