英语翻译

题目

英语翻译
1.When properly maintained,this film seat design will provide an acceptable seal up to 75% of the valve’s set pressure.还有这75%是什么值?75%标定压力下能做到完全密封还是什么?
2.The recalculation of the required orifice size using rated coefficient of discharge (K) and comparing the answer to the actual orifice area will always allow for the same valve size,or smaller,to that identified in the preliminary API sizing.

答案

1、维护得当的话,该薄膜座圈设计在阀门标定压力的0-75%范围内都能提供可以接受的密封程度.
2、用出口流量额定系数重新计算孔口尺寸,其值对比孔口实际面积来看,与被认可的初始API尺寸相同或更小的尺寸是允许的.