消息来源于中国商飞写给北冶公司的感谢信，感谢在发动机试航取证中做出的重大贡献。一般来说，新发动机会在货机上商业飞行很久

来源: thore 于 2024-02-24 09:41:52 [旧帖] [给我悄悄话] 本文已被阅读：次

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