separation constant meaning in English

分离常数

For the scattering field caused by the finite - length conducting and permeable cylinder , the boundary condition that the normal component of electrical strength is zero in conducting medium , i . e . en = 0 , was used to determine the separation constant of boundary value problem in the past
以往含有有限长导电导磁圆柱体散射场的求解，大都根据导电媒质中电场强度法向分量为零，即e _ n = 0 ，这一边界条件来确定边值问题中分离常数的取值。
Considering that the ferrite core is often made from good permeable material , the dissertation presents the condition that the normal component of the magnetic field strength is zero approximately at the inside surface of good permeable material , i . e . bn = 0 to determine the eigenvalues for the separation constant . during the solving process , the solenoid coil is supposed to be wound closely by infinite symmetrical delta - coils
考虑到磁芯通常是由导磁性能非常好的软磁材料构成，本文提出利用靠近良导磁材料内侧磁场强度法向分量近似为零，即b _ n 0 ，这一边界条件，来确定边值问题中的本征值。