Gas quantity can be evaluated approximately according to the rise of case pressure and the change of liquid level.

根据套压上升及液面变化可近似计算出套管产气量。

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When the discharge pressure keeps constant, the relationship between displacement of valve rod and suction pressure, wobble plate case pressure, flow rate through control valve have been obtained.

研究结果得出了当排气压力恒定时，阀杆位移同吸气压力、摇板箱压力以及控制阀流量的稳态特性关系。

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In the reversible case, an external pressure is essentially equal to the internal pressure.

在可逆的情况下，外部压力基本上等于内部压力。

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Of course in the reversible case, you're always pushing against an external pressure, which is essentially equal to the internal pressure.

当然在可逆的情况下，外压力，总是，等于内部压力。

麻省理工公开课 - 热力学与动力学课程节选

In this case here, our property is the value of the pressure times the volume, times the molar volume. That's the property.

或者电阻,对气体来说，它的特性是气体压强。

麻省理工公开课 - 热力学与动力学课程节选

And we combine this with first law, which for the case of pressure volume changes we write as this.

结合第一和第二定律,对于压强体积功我们可以这样写。

麻省理工公开课 - 热力学与动力学课程节选

The case has put pressure on relations between London and Moscow, and the recent developments have threatened to aggravate the situation further.

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In any case, the pressure on Credit Suisse is palpable.

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With the economy still going like a train, even the most fervent believer in the new economy would be hard pressed to mount a strong case against gentle pressure on the brakes.

ECONOMIST: Greenspan lets things simmer