The Prediction if pumpage from mining wells is very important for mining work.

矿井涌水量于矿山开采具有重要意义。

For medium and larger horsepower sizes, some manufacturers elect to offer by-pass (pumpage cooled) jacketed motor designs.

于大中型率（马力）的电机，一些制造商选择提供旁路（却）加套电机设计结构。