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）。
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。
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。
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。
When we walked around the streets of Baghdad and other cities and towns we visited, it felt as if a dark cloud of fear that Iraqis had been living under for the past few years had been lifted.
当我们步行在巴格达等地的大街上时，感觉好象笼罩伊拉克多年的恐怖乌云已经消散一样。
Then, 62 minutes after it had been crashed into, the south tower crumbled into the streets in a gigantic cloud of dust and debris.
接下来，在遭撞击后62分，南塔楼倒塌在大街上，尘土和碎片形成的巨大的浓烟。
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。
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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