它中间有一细腰木轴，两端各连一空心圆轮，轮周开几个方形哨口。
It is the middle of a slender wooden shaft with a hollow circle at both ends of each round, round a few weeks to open mouth square posts.
本文用这种方法求解了含有一个球形空腔的圆轴在两端受拉时的解答，表明了以此法分析求解空间轴对称问题的可能性。
Based on these formulas, axi-symmetric problems in elasticity can be solved by the complex function technique. As an example, a spherical cavity in ar…
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