每到冬季，火星的极冠被一层薄薄的二氧化碳覆盖。
Every winter, Mars's polar cap is sheathed in a thin blanket of carbon dioxide.
火星的大气中有水蒸气，其北极极冠中有水冻冰块。
Mars has water vapour in its atmosphere, and water ice in the shining cap at its North Pole.
由于往往是通过天文望远镜的目镜拍摄，火星的方向是颠倒的，行星的北极冠在下面。
As often seen through an astronomical telescope eyepiece, the planet's orientation is inverted, with Mars' north polar cap at the bottom.
尽管科学家并未做出具体的气温评测，但他们相信这处“温暖”极冠包含着土星上的最高气温。
This warm polar cap is believed to contain the highest temperatures on Saturn; the scientists did not give a temperature estimate.
尽管科学家并未做出具体的气温评测，但他们相信这处“温暖”极冠包含着土星上的最高气温。
This warm polar cap is believed to contain the highest temperatures on Saturn; the scientists did not give a temperature estimate.
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