polar wind

基本解釋

Because BeiJing have many Olympic instrument used green-energy, such as Polar power and Wind power Electricity!
因?yàn)楸本W運(yùn)會(huì)有很多奧運(yùn)設(shè)施，比如很多用太陽(yáng)能和風(fēng)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(chǎng)主看臺(tái)弧形挑篷的風(fēng)荷載和振型函數(shù)特點(diǎn)，提出并建立了極坐標(biāo)下計(jì)算主看臺(tái)弧形挑篷風(fēng)致振動(dòng)響應(yīng)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(fēng)有足夠力量移動(dòng)沙丘的證據(jù)。