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.
通知还对北极冠长丝，跨赤道循环和南部的冕洞，东即将来临，在北极较小的一个。
Notice also the north polar-crown filament, the trans-equatorial loops, and the coronal hole in the south-east (lower-right) corner of the image and the smaller one over the north pole .
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.
这两个行星都有大致相同的地表面积，都有极冠，都有类似的倾斜旋转轴，使得火星和地球都有很强的季节性变化。
Both planets have roughly the same amount of land surface area, sustained polar caps, and both have a similar tilt in their rotational axes, affording each of them strong seasonal variability.
这两个行星都有大致相同的地表面积，都有极冠，都有类似的倾斜旋转轴，使得火星和地球都有很强的季节性变化。
Both planets have roughly the same amount of land surface area, sustained polar caps, and both have a similar tilt in their rotational axes, affording each of them strong seasonal variability.
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