These cloud vortexes are also called von Kármán cloud streets, for the late fluid dynamicist Theodore von Kármán.

为了纪念已故的流体动力学家西奥多·冯·卡门（Theodore von Kármán），这些云旋也被称为冯·卡门云街（von Kármáncloud streets）。

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Cloud streets form when low-lying clouds are interrupted by an object such as an island. Similar patterns occur in the wind flow downstream of airplane wings.

当低垂的云层被岛屿一类的物体所阻碍时就会形成云街，飞机在飞行时机翼后方的气流也会形成类似的漩涡。

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The model's high resolution also allowed it to forecast very specific cloud features. It predicted lines of small clouds, clouds streets, east of the winter storm.

极高的分辨率也使得模型能够预报详细的云体特征，在冬季暴风雪的东部，预报出了一连串的小块云团——云街。

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The model's high resolution also allowed it to forecast very specific cloud features.It predicted lines of small clouds, clouds streets, east of the winter storm.

极高的分辨率也使得模型能够预报详细的云体特征，在冬季暴风雪的东部，预报出了一连串的小块云团——云街。

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But the city remains choked in a cloud of smoke made up of sand blown in from deserts, construction dust and, increasingly, by pollution from the swelling ranks of automobiles clogging city streets.

然而团团烟尘依然笼罩着这座城市，从沙漠吹来的沙尘、建筑尘土以及越来越多的汽车尾气都是形成这些烟尘的罪魁祸首。

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But the city remains choked in a cloud of smoke made up of sand blown in from deserts, construction dust and, increasingly, by pollution from the swelling ranks of automobiles clogging city streets.

然而团团烟尘依然笼罩着这座城市，从沙漠吹来的沙尘、建筑尘土以及越来越多的汽车尾气都是形成这些烟尘的罪魁祸首。

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