11.2.1 System Head
工程科技

11.2.1 System Head图片（共3张） :

        All forms of energy involved in a liquid flow system can be expressed in terms of feet ofliquid. The total of these various heads determines the total system head or the work which apump must perform in the system. The various forms of head are defined as......（本文共 2599 字, 3 张图）     [阅读本文] >>