In this thesis, the expression of stress modification coefficients will be given when the intermediate stiffeners are set on the ring-stiffened cylindrical shell.
本文推导了加设中间支骨的环肋圆柱壳应力修正系数公式。
The strategy of segment transform and the whole wavelet coefficients modification is adopted to improve the robustness of the digital watermark.
采纳分段变换及整体修改策略，增强了数字水印嵌入的稳定性；
The strategy of segment transform and the whole wavelet coefficients modification is adopted to improve the robustness of the digital watermark.
采纳分段变换及整体修改策略，增强了数字水印嵌入的稳定性；
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