母管 meaning in Chinese

manifold

If to let this state go on , there will exist hidden - trouble for the reheater and safe running of the boiler
长期下去将会构成对再热器母管的威胁，成为锅炉安全运行的一大隐患。
There should be a main valve between mother tube boiler and steam mother tube , which should be in remote control
6母管制机组的锅炉与蒸汽母管之间应有主汽阀，主汽阀要实现远方控制。
In power decentralized system , there are not pump / fan installed in main pipe , but also in branches , using the variable speed control to regulating the flow , valve energy consumption can be reduced or avoided , but the investment is higher and control is complicated
动力分散系统不但在系统的母管上,而且在各支路上设泵(或风机) ,并实行变速控制以调节流量,可以减少乃至消除调节阀能耗,但投资增大,控制复杂。