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- Located or found in one of the Polar Regions. 环极的，围绕极地的位于或发现于一个极地区域中的
- The polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
- Extending across or crossing either of the Polar Regions. 横越极地任一个横越或穿过两个极地地区中的
- Over the polar regions we should see aurora. 在极地高空，我们会看到极光。
- It's very cold in the polar regions. 南北极地带是很寒冷的。
- Permanently frozen subsoil, occurring throughout the Polar Regions and locally in perennially frigid areas. 永冻土永久冰冻的下层土壤，出现在整个北极地区和部分长期寒冷的地区
- The immediate cause of low temperature in the polar regions is the low solar elevation and solar radiation input. 极区低温的直接原因是低的太阳高度角以及低的太阳辐射输入。
- Permanently frozen subsoil,occurring throughout the Polar Regions and locally in perennially frigid areas. 永冻土永久冰冻的下层土壤，出现在整个北极地区和部分长期寒冷的地区
- Thus， the tropics were around the upper 70s (degrees Fahrenheit) and the polar regions were around the lower 70s. 热带气温在华氏70度以上，极地气温在华氏70度以下。
- Permanently frozensubsoil, occurring throughout the Polar Regions and locally in perennially frigid areas. 永冻土永久冰冻的下层土壤,出现在整个北极地区和部分长期寒冷的地区。
- Thus, the tropics were around the upper 70s (degrees Fahrenheit) and the polar regions were around the lower 70s. 热带气温在华氏70度以上，极地气温在华氏70度以下。
- A constellation in the polar region of the Southern Hemisphere near Apus and Carina. 苍蝇座位于南极区靠近天燕座和船底座的星座
- Overexposure to radiation threatens the health of passengers on planes flying over the Polar Regions. 过度暴露在辐射下会威胁到飞行在极地上空的飞机上的乘客的健康。
- The Landsat spacecraft orbits the polar regions of the earth at a height of 920 kilometers. 地球资源卫星航天器以920公里的高度环绕地球的两极地区运行。
- Global warming melts the ice in the polar regions, and the increasing water is the cause of transgression. 海侵是由于全球变暖，冰山融水增加而引发的。
- Most sea life is dead.Human refugees now confined entirely to highland areas and the polar regions. 大多数海洋生物都死了，余下的人类只能困居于高地和极地区域。
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- Although the polar regions may seem remote from us, they play an important role in controlling and regulating the climate of the entire planet. 极地虽然和我们相距甚远,但却在调控全球气候方面扮演一个重要的角色。
- A constellation in the polar region of the celestial Southern Hemisphere near Carina and Dorado. 飞鱼星座南天球极部地区船底座和剑鱼座附近的一个星座
- A constellation in the polar region of the Northern Hemisphere near Cepheus and Ursa Major. 天龙星座在北半球的极地，靠近天王座与大熊座的一个星座
