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关注:1
2013-05-23 12:21
求翻译:Since the deflection is small, 1=R is approximately taken as d2y=d2x, and equation (10) may be rewritten as:是什么意思?![]() ![]() Since the deflection is small, 1=R is approximately taken as d2y=d2x, and equation (10) may be rewritten as:
问题补充: |
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