Gas pressure gradually dies out, and oil is pumped from the well.

气体压力逐渐消失，石油从井里泵出。

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A clogged oil filter can also result in low oil pressure.

一个被堵住的过滤器也能引起油压不足。

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The oil pressure will force it up into the heart of the stack of valves.

石油的压力会迫使它上升到真空阀的中心处。

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In nineteen thirty-eight, Adair got his first oil-related job with the Otis Pressure Control Company.

VOA: special.2009.03.22

Expect future cars to help motorists garner maximum mileage by leveraging technology like the eco-tutoring systems found in many hybrids, wider use of tire-pressure, oil life and engine-tuning monitoring systems and more-sophisticated GPS guidance that can select less-congested routes.

FORBES: How To Turn A Fuel-Efficient Car Into A Gas-Guzzler (And Vice-Versa)

While worries in the Middle East have caused a spike, oil prices face longer-term pressure due to increased demand from China and other emerging economies.

CNN: Oil increases to highest level since 2008

Like gold, oil has seen short-selling pressure in the futures market.

CNN: Money & Investing