The temperature was sub-zero.

气温在零下。

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PA Some partial pressure, p sub A, temperature T.

在温度T下的分压为。

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This expansion can cause the temperature of the air to drop to sub-zero levels.

这种膨胀能够导致空气温度降到零度以下的程度。

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This expansion can cause the temperature of the air to drop to sub-zero levels.

这种膨胀能够导致空气温度降到零度以下的程度。

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