Conclusions oxygen nebulization inhalation is better than compressed air nebulization inhalation and low flow oxygen nebulization inhalation is a safety method in treating the patients with COPD.

结论氧气雾化优于空气压缩雾化，而低流量氧气雾化优于高流量氧气雾化，是COPD病人安全的雾化吸入方法。

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Aluminium plastic compound pipe may be used for transportation of cold and hot water, liquid acid, alkali and salt, and various gases as fuel gas, oxygen, compressed air, etc.

铝塑复合管可用于冷热水，酸碱盐各种液体，燃气、氧气、压缩空气等各种气体的输送。

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The Compressed Gas Association (CGA) recommends three different connections for oxygen depending on the pressure of the container.

根据容器的压力，压缩气体协会(CGA)推荐了三种不同的接头。

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The lander Moon Express showed off Thursday is powered by compressed oxygen, for now, as Moon Express employees test it at a NASA facility in Mountain View, California.

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"She had her neck compressed and that was the cause of a lack of oxygen to the brain, " he said.

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