久期方程 meaning in English

secular equation

Simplified formula of secular equation for hydrogen atom in stark effect
氢原子斯塔克效应中久期方程的简化公式
We solve the secular equation for the system ' s binding energy
我们采用解久期方程的方法来研究d ~ -中心的束缚态。
Popular formula of perturbation matrix elements of the hydrogen atom in the uniform magnetic field and the removal of degeneracy for higher energy levels
在均匀强磁场中氢原子塞曼效应久期方程的简化公式