This article briefs the process design of the replacement of centrifugal pump's underwater bottom valve by self-absorption cylinder so as to solve the aerial binding phenomenon with centrifugal pumps.

本文简述了利用自吸筒来替代离心泵水下底阀，以解决离心泵气缚现象的工艺设计。

youdao

That day, Wang Qingji from equipment "health record" records the Secretary identifying the control ring park underground pipeline last turnout cylinder repair, replacement time.

这天，王庆吉从设备“健康档案”记录中查知井下环形车场司控道岔气缸管路上次维修、更换的时间。

youdao