为了纪念已故的流体动力学家西奥多·冯·卡门(Theodorevon Kármán),这些云旋也被称为冯·卡门云街(von Kármáncloud streets)。
These cloud vortexes are also called von Kármán cloud streets, for the late fluid dynamicist Theodore von Kármán.
照片长8英尺,宽4英尺,展现了棒旋星系NGC 1300。星光、炽热气体以及星际尘埃构成的暗云轮廓让这个星系呈现出极为美丽的一面。
The Hubble telescope captured a display of starlight, glowing gas, and silhouetted dark clouds of interstellar dust in this 4-foot-by-8-foot image of the barred spiral galaxy NGC 1300.
一龙戏九珠点缀在从龟背山至飞云洞的山槽里,是嶙峋的河床上低旋着的一溜九个喀斯特黑洞。
It is nine serial karst holes lying on the jagged river bed from the Guibei Mountain to the Clouds Flying Cave.
一龙戏九珠点缀在从龟背山至飞云洞的山槽里,是嶙峋的河床上低旋着的一溜九个喀斯特黑洞。
It is nine serial karst holes lying on the jagged river bed from the Guibei Mountain to the Clouds Flying Cave.
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