现在美国的大推力火箭发动机用俄国货，登月40多年了，按理火箭发动机应该更成熟更先进了嘛

来源: 头发与财富成反比于 2015-05-29 23:25:50 [旧帖] [给我悄悄话] 本文已被阅读：次

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