常見例句雙語例句Especially suitable for the performance test of safe valve seal pressure, ration, open and return pressure.專用于法蘭式安全閥的密封壓力、整定、開啟、回座壓力的性能試驗。The seal water flow must be considered while performance calculating. This flow is very important for test result.其中主流量的準確測量是性能試驗的關(guān)鍵，而作為主流量旁路的給水泵密封水流量也具有不可忽視的地位。 返回 seal performance test