As early as the 19th century, there have been cases of people being electrically charged or magnetized, resulting in an odd electromagneticeffect on the objects around them.
其实早在19世纪就出现过一些身负电荷或电磁的人，他们周边的事物都会被古怪的电磁效应所影响。
2
Power failure equipments placed among the area of strong electrical and magnetic fields must produce induction voltage for the cause of electrostatic and electromagneticeffect.
处于强电、磁场中的停电设备，由于电容、互感效应要产生感应电压。
3
In the pulsing core, the coils are preferably wound in the same direction to maximize the additive effect of the electromagnetic field therein.