Northern & Polar Studies 北部与极地研究
The situation is no better in the Arctic north, where studies predict that polar bear populations will rapidly shrink over the coming decades, thanks again to warming.
北极北部的情况不见得有多好，研究表明在未来的几十年，那里北极熊的数量会急速下降，这还是“归功于”全球变暖。
Our studies show that the Cartesian coordinate offers more perfect description than the spherical polar one does.
本文还表明，笛卡儿坐标比球坐标能提供更多的物理内容。
This paper studies magnetic control of polar orbiting, nadir pointing satellite.
本文研究如何用磁力矩器控制极地轨道上对地指向卫星的姿态。
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