卡西尼宇宙飞船获取的图像拼接后显示的土星六角星云团环绕在土星北极的巨大六角形云团几十年来一直困惑着科学家们。
A giant hexagon circling Saturn's north pole has puzzled scientists for decades.
一部分北极地区鸟儿的死亡很奇怪，从另一角度看，甚至是很滑稽的，他解释道。
A segment of bird deaths in the Arctic, he explained, are strange and, in a way, even comical.
这个洞现在正在被填补起来——这归功于角鲸，一种中等大小的，北极特有的鲸，因为雄鲸长着一个螺旋纹的长牙而被称为海中的独角兽。
That hole is now being filled - thanks to narwhals, medium-size whales, endemic to the Arctic, known as unicorns of the seas because of the single, spiralling tusk found in males.
这个地区的居民每年能看到数十次北极光，而那些居住在更北边的巴罗角的人们更可以看到上百次之多。
Residents of the region witness dozens of auroras yearly; those in the Point Barrow area farther north see as many as a hundred.
和现今的一些大型的头部撞击生物相比，如北美的大角羊，北极的麝香牛和非洲的小羚羊，剑角龙的头部可以承受更大的压力。
Compared to some of today's big hitters, such as the Northern American bighorn sheep, the Arctic musk ox and African duiker, Stegoceras' head was able to withstand the most stress.
方位角观察者通过测量所具有的水平角度，从某一参考方向顺时针测量，如从北部或从参考天体处，通常从北极星。
The horizontal Angle of the observer's bearing in surveying, measured clockwise from a referent direction, as from the north, or from a referent celestial body, usually Polaris.
首先，“魔鬼三角洲”是地球上指南针指向真正的北极的两个地方之一。
First, the "Devil's Triangle" is one of the two places on Earth that a magnetic compass does point towards true north.
然而，百科全书式博物馆的馆藏在线展示已经被远及北极圈到非洲之角的人们浏览过了。
Yet the online catalogues of encyclopedic museums are already visited by people from the Arctic Circle to the Horn of Africa.
首先，“魔鬼三角洲”是地球上指南针指向真正的北极的两个地方之一。
Normally it points toward magnetic north. The difference between the two is …
首先，“魔鬼三角洲”是地球上指南针指向真正的北极的两个地方之一。
Normally it points toward magnetic north. The difference between the two is …
应用推荐