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[海洋]极地冰
1、polar hippos───极地河马
2、polar post───极柱
3、polar coordinates───n.极坐标；n.[数][天]极坐标
4、polar bear───[脊椎]北极熊；n.北极熊
5、polar molecules───有极分子
6、polar beat───极拍
7、polar circle───[数]极圆；[天][测]极圈
8、polar───n.(Polar)人名；(德、西)波拉尔；n.极面；极线；adj.极地的；两极的；正好相反的
9、amphitrichous polar───两性极性
1、The polar ice caps are made of frozen water and carbon dioxide, and water may be frozen in the ground as permafrost.───极地冰帽是由固态水和二氧化碳组成的，水也有可能存在于永久冻土之中。
2、all of the water lies trapped in the Martian polar ice caps or frozen beneath the surface.───其原因是几乎所有的水都蕴藏在火星南北两极的冰盖下或冻结在表层下面。
3、The size of the North Polar Ice Cap in the month of September is only half the size it was a mere 50 years ago.───北极冰盖在9月份的大小，只相当于50年前的一半。
4、The maker of the endless pool has put the bears to music on his Web site . A Jacuzzi may make things bearable but heaven is a polar ice cap.───涡轮游泳池的制造者把配有音乐的北极熊放到他的网站上。一个如意按摩浴缸也许能让北极熊受用，但是真正的天堂还是一块北极冰盖。
5、As he puts it: "Communist parties have existed in almost every area of the globe except the polar ice caps. "───就像他所写的：“GongChan主义政党出现在世界的每一个角落，除了两极冰山外。”
6、If the polar ice caps melted how much would the oceans rise?───假如极地冰冠融化了，海平面会上升多少？
7、There was a period of excessive warmth which melted some of the polar ice.───有段时期温度过高，融化了极地的部分冰层。
8、Eventually, Agassiz and others convinced geologists and the general public that a great continental glaciation had extended the polar ice caps far into regions that now enjoy temperate climates.───最后，阿加西和其他人说服了地质学家和普通大众，一个巨大的DaLu冰川作用已经把极地冰帽延伸到了现在享受温带气候的地区。
9、With the temperature rising, polar ice will melt at a faster rate.───随着温度的上升，极地的冰会以更快的速度融化。
1、Polar ice also would provide hydrogen for rocket fuel and for industrial processes.
2、During local spring in the polar regions, polar ice and perpetual sunlight may both be available simultaneously!
3、Eventually, this could melt the polar ice caps and cause devastating costal all over the world.
4、Even the polar ice contains pesticide, for example.
5、With a yet slower rhythm than the polar ice, the tides of civilization ebbed and flowed across the galaxy.
6、Warmth melted some of the polar ice.
7、As our climate warms up, the polar ice caps will begin to melt.
8、This astonishing discovery of polar ice on Mercury makes it clear that impacts play a major role on all the terrestrial planets.
9、The use of polar ice to support such a ballistic-transportation scheme requires a substantial consumption of propellant along the way.