硬盘

They once tried to carve Chuck Norris' face into Mount Rushmore, but the granite wasn't hard enough for his beard.

人们曾试过将CN的脸刻在总统山上，无奈花岗岩太软，刻不出他胡子的刚劲！

Through reasonable setup and Fresnel diffraction integral, the theory of aberration correction by LSBS was proved.The aberration of wavefront was introduced by Zernike polynomial.

文中讨论了自发布里渊散射提供噪声源的LSBS发生器特性，并将此模型与目前广泛使用的分布式噪声源LSBS发生器模型进行了对比，分析了二者的优劣及适用情况。