If the trapped pressure bleeds off the unloader will cycle, or hunt.

减压器补集到的压力会再循环，或叫做“猎取”。

youdao

Compared with the former, the inclusion in the latter was characterized by its complex assemblage in types, and higher homogenization temperature, salinity and trapped pressure.

前者的包裹体类型简单，均一温度、盐度和捕获压力较低；后者以包裹体类型复杂、均一温度及捕获压力较高为特征。

youdao

When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it.

当井和一个水池相接时，油通常会从井里上升，因为它与井下的水的密度不同，或者因为停留在它上方的膨胀气体的压力。

youdao

About 25, 000 wells a year are being fracked, a process in which water, chemicals and sand are injected at high pressure underground to release trapped natural gas.

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The process involves pumping water containing small percentages of other materials into the porous shale under pressure to hydraulically fracture it and release the trapped oil and gas.

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Far from deflecting pressure on Israel to make further concessions, it trapped Israel into a position that serves none of its vital interests.

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