Any such device is called a seat of electromotive force . 任何这样的装置称为电动势源。
The induced electromotive force and the current do not move along evenly together, that is, in phase . 感应电动势和电流并不协调一致地变化,即并不同相位。
The common principle is the use of the induction of an electromotive force by the variation of the magnetic flux through a coil . 一般原理均是使用通过线圈的磁通量变化感应的电动势。
Thermic electromotive force and allowable error at 200 mv 200热电动势及允差mv
Thermic electromotive force and allowable error at 100 mv 100热电动势及允差mv