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单词 permanent gas
释义
permanent gas
Physics

  • A gas, such as oxygen or nitrogen, that was formerly thought to be impossible to liquefy. A permanent gas is now regarded as one that cannot be liquefied by pressure alone at normal temperatures (i.e. a gas that has a critical temperature below room temperature).

Chemistry

  • A gas, such as oxygen or nitrogen, that was formerly thought to be impossible to liquefy. A permanent gas is now regarded as one that cannot be liquefied by pressure alone at normal temperatures (i.e. a gas that has a critical temperature below room temperature).

Chemical Engineering

  • A gas that was once thought to be impossible to liquefy, such as oxygen and nitrogen. It is now considered to be a gas that is not able to be liquefied by pressure alone at normal room temperature. That is, the gas has a critical temperature below normal room temperature.
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