n.(高山等上之)常积不消的冰;冰盖
=ice cap.
Some 95 percent of Antarctica is covered by an icecap averaging . 南极洲约百分之九十五的地方被厚度差不多的常积不消的冰覆盖着。
Antarctica also moves north, shedding its icecap. 南极洲也北移,甩掉冰冠。
Large, flat sheets of the icecap called ice shelves float in water near Antarctica. 大而扁平状的冰冠称作冰架,它们漂浮在南极洲周边的水域中。