service pump的例句大全

At the end of the article the author says that the service life of slush pump gear set can be elongated by a correct usage and timely replacement of lubricating oil and lubricating methods.

正确地使用和及时更换润滑油，完善润滑方式，可以显著提高钻井泵齿轮副的寿命。

the design of drilling pump valve directly influences its working performance and service life.

泵阀是钻井工作过程的直接组成件,也是钻井泵中最重要的易损件之一.

Reformed the structure of pump shaft, increased diameter of shaft located the position of pump thrust bearing lock nut, improved the strength of pump shaft, extended the service life of pump shaft.

改进泵轴结构，在泵轴推力轴承锁紧螺母处加大轴径，提高了泵轴强度，延长了泵轴的使用寿命。

standard for service tests of fire pump systems on fire apparatus.

开路设备的选择、照看、维护和标准.