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Bitcoin Forum > Local > 中文 (Chinese) > 离题万里 > 专家：国产大飞机C919约采用30%复合材料 与国外有差距
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chiminwon (OP)
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June 25, 2017, 02:55:56 PM
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中新社长春6月24日电(记者董子畅)中国工程院院士、中国航天科技集团公司四院副院长侯晓24日在先进材料创新展览会上告诉记者，国产大飞机C919约采用了30%的复合材料，与目前国外先进机型复合材料应用比例50%相比，我们还有一定差距。
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fea1ther
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June 25, 2017, 04:14:35 PM
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国产组装杠杠的。
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June 25, 2017, 10:01:27 PM
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已经很厉害的了，开发不容易
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June 25, 2017, 10:34:33 PM
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自主生产的不容易啊
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