2.7 Auxiliary Equipment of the Water Conveyance System

2.7.1 Pumping station under one of the following conditionsshould be installed with vacuum pumping system and water filling system,and the vacuum pumping system shall be wellsealed.1 Axial flow pumping station and mixed flow pumping station with siphoning ......（本文共 1412 字 ）     [阅读本文]>>