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关注:1
2013-05-23 12:21
求翻译:These alloys were the foundation of the modern aerospace construction industry and, for example AA2024 (Al-4.4Cu-1.5Mg-0.8Mn),是什么意思?![]() ![]() These alloys were the foundation of the modern aerospace construction industry and, for example AA2024 (Al-4.4Cu-1.5Mg-0.8Mn),
问题补充: |
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