电动电位差的英文：
EMDP, electromotive difference of potential

electromotive是什么意思：
a. 起电的

It is electromotive force that drives electrons through the circuit.
是电动势驱使电子沿电路运动。

An electric current varies directly as the electromotive force and inversely as the resistance.
电流的大小与电动势成正比，与电阻成反比。

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。

difference是什么意思：
n. 不同，差别，差异；差数，差额；意见分歧；争执

Different strokes for different folks.
不同的人有不同的兴趣和爱好。

The difference is 8532.
差数为8532。

Different countries have different national conditions.
各国有各国的国情。