carbon dioxide ice 干冰 ; 固态二氧化碳 ; 固体
carbon dioxide ice cleaning 干冰清洗
Into carbon dioxide dry ice 二氧化碳变成干冰
Carbon dioxide into dry ice 二氧化碳变成干冰
The photographs actually show sand dunes coated with a thin layer of frozen carbon dioxide, or dry ice, less than 240 miles from the planet's north pole.
这张图片实际显示的，是距离火星北极不足240英里的沙丘上覆盖的一层薄薄的冰冻二氧化碳、或干冰。
Spring on Mars sees plumes of carbon dioxide vaporizing from solid blocks of dry ice as they warm up in the sunlight.
每年春季，火星表面的干冰(固体二氧化碳)在阳光照射下，会由固态升华为气态。
How come a big ice age happened when carbon dioxide levels were high?
在大冰河期，二氧化碳含量水平怎么会高呢？
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