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关注:1
2013-05-23 12:21
求翻译:where I1 and I2 are the second moments of area of the free surfaces, and V1 and V2 the是什么意思?![]() ![]() where I1 and I2 are the second moments of area of the free surfaces, and V1 and V2 the
问题补充: |
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