In this paper a new method for making circular variable density filters is proposed.
本文提出一种制备圆形渐变衰减片的新方法。
The complex variable method analytic solution of stress is given for the plane elastic stress problem of surrounding rock of shallow circular tunnel under ground load.
采用复变函数解法，研究地面荷载作用下浅埋圆形隧道围岩的平面弹性应力问题。
The solutions of a large deflection problem of thin orthotropic circular plates with variable thickness under uniform pressure and under concentrated load are obtained in this paper.
本文给出了正交各向异性变厚度圆薄板在均布载荷与集中载荷作用下大挠度问题的解。
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