The major factors effecting on the backpressure include atmospheric environment temperature, primary temperature difference of air-cooling, end difference of condensers.

影响其背压的主要因素有：大气环境温度、空冷初始温差、凝汽器的端差。

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We call that inversion because on one side you end up cooling if you compress.

因为在这个温度的一边,当你压缩气体时气体降温。

麻省理工公开课 - 热力学与动力学课程节选

At the core of the Sub-Zero is a series of TEC peltier coolers that work in conjunction with other high-end liquid cooling components.

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One theory is that a cooling event at the end of the Eocene dried up swamps and rivers, forcing animals out on to the land.

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The weather is cooling off as we reach the end of October.

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