So the idea of spherical coordinate is you're going to polar coordinates again in the rz plane.
所以说球坐标系,其实就是在rz平面再建立一个极坐标。
Adopting spherical mirror and plane mirror can notablely improve the utilization of the light source in the system of light source.
在光源系统中采用球面聚光镜和平面反射镜，可大幅提高光源的利用率。
This paper studies the scattering of plane compressional waves by a spherical inhomogeneity with a sliding interface embedded in an infinite homogenous media.
本文研究了无限各向同性基体中的滑动界面球形单夹杂对平面压缩波的散射问题。
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