The longitudinal current of both conduction current and displacement current make no contributions to the magnetic field.
传导电流和位移电流的纵向分量对磁场无贡献。
These solutions belong to the intrinsic electromagnetic vortices, the corresponding magnetic field perturbations and the longitudinal current are continuous on the boundary of the vortex.
这些解属于本性电磁涡旋，对应的扰动磁场和纵向电流在涡旋边界上是连续的。
It is described a cathodic protection system of reinforced concrete structures with discrete anodes obtained starting from a corrugated planar substrate welded to a longitudinal current collector.
本发明描述了具有不连续阳极的增强混凝土结构的阴极保护系统，所述阳极可从焊接到纵向集电器的皱褶状平面基体开始获得。
It is described a cathodic protection system of reinforced concrete structures with discrete anodes obtained starting from a corrugated planar substrate welded to a longitudinal current collector.
本发明描述了具有不连续阳极的增强混凝土结构的阴极保护系统，所述阳极可从焊接到纵向集电器的皱褶状平面基体开始获得。
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