但是不要要求对他的优雅证明的解释，除非你对圆锥截面感兴趣。
But don't ask for an explanation of his elegant proof unless you are interested in conic sections.
利用这组方程，作者研究了纵向磁化铁氧体柱中的法拉第旋转（铁氧体柱的两端是截面变化的圆锥）。
With these equations, they have investigated the problem of Faraday rotation in a longitudinally magnetized ferrite rod with tapering cross-sections at both ends.
结果表明：在强激光冲击下，试样发生显著的塑性变形，变形后轴截面形状为类圆锥形；
The specimen irradiated by intense laser generates distinct plastic deformation, and the profile of axial cross section of specimen after shocking is similar to a coniform figure.
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