extraction pump

基本解释

The water in the hot-well is pumped by the condensate extraction pump through the low pressure feed-heating system to another pump, the boiler feed pump.
在热井中的水在凝结水泵的作用下通过低压给水加热系统到达另一个泵，锅炉给水泵。
mengang2008.blog.163.com
The treatment equipment comprises a waste oil tank, an extraction pump, an oil filter, an impurity separator, a pressuring pump and a ceramic film filter;
处理设备包括废油槽、提取泵、机油过滤器、杂质分离器、加压泵和陶瓷膜过滤器；
ip.com
Unloading method of injecting nitrogen to tank car to raise pressure and liquid extraction with centrifugal pump simultaneously is often used to unload butadiene tank car.
丁二烯罐车卸车多采用氮气注入罐车加压，同时用离心泵抽液的卸车方法。

Higher prices at the pump have also made extraction from oil sands and heavy oil feasible.
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