MacArthur 发表于 2013-10-19 20:40" s7 l7 }- W8 H& h6 b; Z# m c' d
这只“虎”的俩前起落架上包裹的是什么东西?起落架整流罩?. ]9 j3 u$ L8 V$ F* N2 D
让我想起另外一个著名的“穿草鞋的”
What he found was that vortex ring state is surprisingly hard to induce.
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