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.
在熱井中的水在凝結水泵的作用下通過低壓給水加熱系統到達另一個泵，鍋爐給水泵。
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;
処理設備包括廢油槽、提取泵、機油過濾器、襍質分離器、加壓泵和陶瓷膜過濾器；
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.
丁二烯罐車卸車多採用氮氣注入罐車加壓，同時用離心泵抽液的卸車方法。

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