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。
The white material at the top of the cliff, near the planet's North Pole, is carbon dioxide ice.
照片上显示的悬崖上的白色物质是位于火星北极地区的干冰。
A warmer pole means higher sea levels and a thaw in the arctic permafrost would lead to even more methane and carbon dioxide being released into the atmosphere.
暖极代表海平面上升和在北极永久冻土层解冻，会引起更多的沼气和碳排放量释放到大气层。
In the use of the anode carbon block cycle, as anode was consumed, lead anode carbon block anode institutions to drop, to guarantee the stability of cell pole pitch.
在阳极炭块的使用周期内，随着阳极被逐渐消耗，阳极机构带动阳极炭块下降，以保证电解槽稳定的极距。
Many scientists blame the increase in global temperatures on an increased concentration of carbon dioxides in the atmosphere, which surpassed 400 parts per million in May at the South pole.
很多科学家认为全球温度升是由于大气中二氧化碳浓度上升，今年五月份南极的二氧化碳浓度已超过百万分之四百。
Many scientists blame the increase in global temperatures on an increased concentration of carbon dioxides in the atmosphere, which surpassed 400 parts per million in May at the South pole.
很多科学家认为全球温度升是由于大气中二氧化碳浓度上升，今年五月份南极的二氧化碳浓度已超过百万分之四百。
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