Spring has sprung on Mars, bring with itthe disappearance of carbon dioxide ice (dry ice) that covers the northpolar sand dunes.

春天在火星上跃动，覆盖在北极沙丘上的二氧化碳干冰消失了。

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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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