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。
2
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。
3
This paper studies the scattering of plane compressional waves by a spherical inhomogeneity with a sliding interface embedded in an infinite homogenous media.