Buy a little hunk of dry ice from a local ice house.

从一个当地冰店买一些大块的干冰。

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The ice cap could be thinner and still protect water if it were topped with a layer of frozen atmospheric gas, such as dry ice, which is solid carbon dioxide.

若冰层上方还存在一层固态气体层，如干冰——二氧化碳的固态形式，维持液态水存在的冰层厚度要求就能相对降低。

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It's still 'warm' enough, relatively speaking, to make the 'dry ice' of the polar ice caps boil off.

相对将极地的冰冠气化成“干冰”，这样的温度仍然足够“温暖了”。

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Sometimes,dry ice particles or liquid propane are used.

VOA: special.2010.01.05

It could identify soil types, verify the presence of water ice and dry ice at the poles, and even track traces of water underground.

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"Upon initial investigation, it appears it was a plastic bottle with dry ice in it that had exploded, " said Sgt.

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Not wishing to stick around to find out I bought all the dry ice he had and made my exit.

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