词汇	two relief valve
释义	two relief valve 双溢流阀
随便看	checking of propeller pitch checking of quality checking of quality of goods checking of redundant substance checking of routing checking of seals checking of solution checking of sorted cardlike data carriers checking of sorted data carriers Checking of the mechanical governor checking of the moving status of cards checking of the quality of equipment Checking of the sealing injection pump body checking of underground pipeline data checking of weapons checking of works checking of young plantation checking on checking on cadres checking online checking-on-officials colleges Checking on Work Attendance checking operator checking or investigation checking principle