本论文具体研究工作如下：研究了含孔柱壳结构中弹性波散射与动应力集中问题。
The main research contents in this dissertation are as follows: Elastic wave scattering and dynamic stress concentration in circular cylindrical shells with a hole are studied.
自调心球轴承的基本设计带有一圆柱孔，或者在某些尺寸范围内带一圆锥孔（圆锥1：12）。
The basic design self-aligning ball bearing is available with a cylindrical bore or, in certain size ranges, with a tapered bore (taper 1:12).
如果骨折累及坐骨大孔或髋臼后柱则可引起坐骨神经损伤。
Sciatic nerve injuries may occur if the fracture involves the greater sciatic notch or the posterior acetabulum.
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