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The problems of annular concrete plates of orthogonal anisotropy and nonlinear variable thickness are discussed.
讨论了正交异性非线性变厚度混凝土环形板问题.
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The analysis for free vibration of ring - stiffened circular cylindrical shell with variable thickness was presented.
分析了环肋变厚度圆柱壳的自振特性.
可变厚度???
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