When it rises towards the warmer surface the wax melts and expands, which compresses a tank of air.

当它上升至暖水层时蜡会融化并膨胀，从而挤压容器内的空气。

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If warmer carbon dioxide gas is desired, vapor is withdrawn from the vapor space in the storage tank and superheated.

如果需要温度更高的二氧化碳气体，可以从蒸气空间提取出蒸气，并使其过热。

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If warmer carbon dioxide gas is desired, vapor is withdrawn from the vapor space in the storage tank and superheated. Bulk storage tanks are filled by liquid transport trailers.

如果需要温度更高的二氧化碳气体，可以从蒸气空间提取出蒸气，并使其过热。由液体运输拖车来灌装大容量容器。

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