涡扇15性能大幅提升，变循环发动机也在试制，好消息让人猝不及防
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| MP4 | N/A | 480P | Download |
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最近中国航发动力公司发布了2021年半年度报告，报告中提到了三代机工艺不断趋于成熟，四代机关键技术能力大幅提升，五代机预研技术持续突破
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