polar wind

基本解釋

Because BeiJing have many Olympic instrument used green-energy, such as Polar power and Wind power Electricity!
因為北京奧運會有很多奧運設施，比如很多用太陽能和風力發(fā)電，都是綠色能源！
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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.
根據(jù)體育場主看臺弧形挑篷的風荷載和振型函數(shù)特點，提出并建立了極坐標下計算主看臺弧形挑篷風致振動響應的方法。
They also found evidence that wind gusts in the northern polar region are strong enough to move grains of sand.
他們也發(fā)現(xiàn)北極地區(qū)的陣風有足夠力量移動沙丘的證據(jù)。