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

矿井涌水量预测对于矿山开采具有重。

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

对于大中型率（马力）的电，制造商选择提供旁路（泵冷却）加套电设计结构。