polar cap 极冠 ; 极帽 ; [水文] [地理] 极地冰冠 ; 极卡
polar-cap ice 极冠冰 ; 极地冰
polar cap ice 极区冰
polar cap absorption 极冠吸收极冠吸收 ; 极地冷空气堆吸收
polar cap phase anomaly 极冠相位偏移
polar cap stage 极帽期
Polar Cap Region 极帽地区
polar cap light [地物] 极盖辉光
He said that further warming could trigger polar ice cap melting.
他说进一步的变暖可能触发极地冰帽融化。
As often seen through an astronomical telescope eyepiece, the planet's orientation is inverted, with Mars' north polar cap at the bottom.
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。
The pinkish deposits constitute a vast south polar cap believed to contain methane ice, which would have reacted under sunlight to form pink or red compounds.
这些固态氮冰在阳光照射下会产生化学反应，生成粉色或红色的化合物。
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