球面对称设计
central composite design
spherical symmetric design
球对称引力场
spherical symmetrical gravitational field
球对称稳态时空
steady and spherically symmetrical spacetime
球对称梯度折射率分布
Spherical symmetry gradient index distribution
球对称解
radial solutions
spherically symmetric solutions
radial solution
静态球对称时空
Static and spherically symmetrical space-time