MacArthur 发表于 2013-10-19 20:400 N& D r6 S, V- ~/ o- l
这只“虎”的俩前起落架上包裹的是什么东西?起落架整流罩?# `. N& v9 y% [9 z! Z6 s
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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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