运-20大型运输机地震日下午再试飞关键技术成熟

来源: 都爱哈哈于 2013-04-21 22:54:16 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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运-20大型运输机地震日下午再试飞 关键技术成熟