These huge, slow - moving masses of ice cover about seventy - five thousand square kilometers.

这些庞大的, 移动缓慢的巨大冰块覆盖了大约七万五千平方公里.

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The study found an average ice cover of about fifteen million square kilometers in March.

研究发现在三月份平均冰盖面积大约有1500万平方公里.

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First, melt reduces sea ice cover, replacing mostly light - reflecting sea ice with mostly light - absorbing seawater.

首先, 它降低了海冰的覆盖率, 大量反射光线的海冰被吸收光线的海水所取代.

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Rivers in high latitude areas usually form ice cover, ice jam or ice dam during winters.

高纬度地区河流冬季常形成冰盖 、 冰塞或冰坝.

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Therefore, changes in the sea ice cover have a significant effect on the global energy balance.

因此, 海冰覆盖状态的变化能给全球能量平衡带来巨大影响.

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