On Wednesday, a polar wind brought bitter cold to the Midwest.
周三，一股极地风给中西部地区带来了刺骨的严寒。
The resulting stream of charged particles, called the polar wind (not to be confused with the planetary wind), accounts for 10 to 15 percent of Earth's hydrogen loss and almost its entire helium leak.
由此形成的带电粒子流，就叫做“极地风”(polar wind)，可占地球氢元素泄漏过程的10 ~ 15%，而几乎所有的氦气就是以这种方式脱离地球的。
This image shows part of a polar crater that still holds on to some summer ice, as well as beautiful sand dunes sculpted by the wind.
这张照片展示了某个极地陨坑，陨坑中还保存着一些夏季冰的痕迹，在风的作用下形成了一些美丽的沙丘。
The polar bear on the melting ice flow has become an iconic picture of the decade, business has painted itself green, we've changed our lightbulbs and wind power has taken off.
融化冰流上的北极熊已经成为这十年的标志图像；企业标榜自己是环保的；我们换了灯泡；风力发电开始启动。
They also found evidence that wind gusts in the northern polar region are strong enough to move grains of sand.
他们也发现北极地区的阵风有足够力量移动沙丘的证据。
At Earth, auroras light up when solar wind particles slam into molecules of air near the polar regions.
在地球上，当太阳风粒子与两极地区附近的大气中的分子相撞时，会发生极光现象。
The third wind belt develops as cold polar air sinks and moves south, is deflected to the right, and is therefore called the polar easterlies.
当冷的极地的空气下沉并且移动南方，受科氏力影响偏向右边，因此被称为极地东风带。
Based on the characteristics of wind loads and modal shape of grandstand arc roofs of large stadiums, a polar coordinate method for wind induced dynamic response analysis is proposed in this paper.
根据体育场主看台弧形挑篷的风荷载和振型函数特点，提出并建立了极坐标下计算主看台弧形挑篷风致振动响应的方法。
Because BeiJing have many Olympic instrument used green-energy, such as Polar power and Wind power Electricity!
因为北京奥运会有很多奥运设施，比如很多用太阳能和风力发电，都是绿色能源！
Because BeiJing have many Olympic instrument used green-energy, such as Polar power and Wind power Electricity!
因为北京奥运会有很多奥运设施，比如很多用太阳能和风力发电，都是绿色能源！
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