Compressed air is not only a work medium, but a kind of power source stored pressure energy.

提出压缩空气不仅可以作为工作介质，而且可以储存能量作为一种动力源。

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Power element: an energy conversion device for converting mechanical energy output from a prime mover into a liquid pressure energy.

动力元件：把原动机输出的机械能转变为液体压力能的能量转换装置。

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It could not only recover the pressure energy of high-pressure gas, but also reduce the cooling cost for tire cryogenic comminution.

此方法不仅能够使高压天然气的压力能得到有效的回收利用，而且能够降低废旧橡胶低温粉碎的成本。

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Whereas under these conditions, these quantities, if you look at free energy change, for example at constant temperature and pressure, H you can still calculate H.

但是，在这些条件下，这些物理量，如果我们考察自由能的变化,例如在恒定的温度和压强下，我们仍然可以计算。

麻省理工公开课 - 热力学与动力学课程节选

You just change volume to pressure and basically you're looking at enthalpy under a constant -- anything that's done at a constant volume path with energy, there's the same thing happening under constant pressure path for enthalpy.

可以看到这就是把体积换成了压强,一般我们都是在一种恒定状态下,考虑焓的，任何在恒容条件下,能伴随能量变化的东西，也在恒压条件下伴随焓同样地变化,所以你可以经常。

麻省理工公开课 - 热力学与动力学课程节选

If we have too much gas in here, in other words, if the gas is at too high a pressure, the collisions with the gas molecules will consume the energy of the electrons and, again, we will see nothing.

假设这里有过多气体，换句话说，如果气体处在一个高压状态下，气体分子间的碰撞将会消耗,电子的能量，同样，什么也没有。

麻省理工公开课 - 固态化学导论课程节选

Labour councils he insisted could still make a difference by paying people a living wage, protecting services and putting pressure on energy companies to reduce their bills.

BBC: Ed Miliband campaigns using 'old fashioned' soap box

Specifically, Greenpeace says, Apple should pressure Duke Energy, which it says provides power to its North Carolina data center, to produce energy by cleaner means and to end its "mountaintop coal removal operations" from Apple's supply chain.

CNN: Apple's green image continues to be dirtied

Although, with plentiful oil and natural gas in the US, the pressure on energy conservation has eased a bit it is clear that there is a finite amount of accessible energy available and conservation of energy is important to preserve these assets for future generations.

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