The bump governor is a device for convernient pump bumping and impingement space specifying of pumping well. 抽油井碰調器是便于抽油井碰泵和規范防沖距的一種裝置。
This paper analyzes influencing factors on anticollision distance of fiberglass rod pumping wells, corrects some mistakes in the former literature, and presents some new opinions. 分析了影響玻璃鋼桿抽油井深井泵防沖距的各因素，糾正了在這一問(wèn)題中的一些錯誤認識，并就防沖距的計算提出了自己的看法。
It describes unsteady flow toward a discharging well in an extensive aquifer. 它描述位于廣闊含水層中的抽水井的非穩定流。
