C919有无数次试航，只有一次出现反推故障。反推故障不影响降落安全，本来故障率就高，有千分之一，

来源: 大洋bridge 于 2023-03-17 11:41:20 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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