Maxwell's equations conserve certain properties-the magnetic field intensity, the electricdisplacement field and the Poynting vector that describes the electric flux of an electromagnetic field.
麦克斯韦方程中有某些特性是恒定不变的——磁场强度、电位移场以及描述电磁场电通量的坡印廷矢量。
2
It is found that the electricdisplacement intensity factors for the permeable crack surface conditions are much smaller than the results for the impermeable crack surface conditions.
与不可导通电边界条件相比，导通裂纹表面的电位移强度因子比不可导通裂纹的电位移强度因子要小许多。
3
The paper is to prove the refraction on two kinds of medium interfaces of electricdisplacement line using the boundary condition of the electric field and Fermat Principle.