The COP of conventional trans critical carbon dioxide air conditioning cycle depends strongly on the working fluid temperature at the gas cooler outlet.

常规跨临界二氧化碳空调循环的性能系数对气体冷却器出口工质温度十分敏感，该温度越低，同等条件下性能越好。

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In view of the poor heat transfer conditions of the cylinder ina small air compressor, a scheme is put forward for reinforcing heat trans-fer of cylinder by latent heat of vaporization.

本文针对小型风冷压缩机气缸换热条件较差问题，提出利用汽化潜热对气缸强化换热的方案。

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According to its provisions, U. S. aircraft were allowed to fly, load and unload or trans-ship anywhere within China, and the United States gained complete control of the country's air transport.

按照这个协定的规定，美国飞机可以在中国到处飞行、装卸和运转，完全控制中国的空运事业。

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In 1986, an American Trans Air DC-10 was destroyed after an oxygen generator was somehow activated.

CNN: Expert: Oxygen generators should be safe as cargo

As we all know, a volcano eruption over Iceland last week and has disrupted trans-Atlantic air travel.

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That's because it's now possible to take part in private jet timeshares through companies like Trans-Exec Air Service and Marquis Jet.

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