1.
It has been proved that induced voltage causes a current to flow in opposition to the force producing it.
已经证明，感应电压使电流的方向与产生电流的磁场力方向相反。
2.
The direction of the current was decided before electrons were discovered.
电流的方向在发现电子之前便已确定。
3.
The direction of the current is decide before electron is discover.
电子被发现前,电流的方向就被确定了。
4.
To reverse the direction of(an alternating electric current)each half - cycle to produce a unidirectional current.
变换电流方向颠倒每一半周（交流电流的）方向，以产生单方向性电流
5.
The current flowing in one direction is called direct current .
沿着一个方向流动的电流叫做直流电。
6.
an electric current that reverses direction sinusoidally.
正弦地改变方向的电流。
7.
The direction of conventional current flow is counterclockwise.
传统的电流方向是逆时针方向。
8.
The difference between a direct and an alternating current is that a direct current always flows in one direction.
直流电和交流电的区别在于直流电总是向一个方向流动。
9.
energize a battery by passing a current through it in the direction opposite to discharge.
通过电流朝与放电相反的方向流动给电池充电。
10.
A direct current is a current flowing always in the same direction.
直流电是一种总是沿同一方向流动的电流。
11.
"Conventionally, the direction of electric current is that of the flow of the positive ions."
为了表示电流总的作用,通常取正载荷子的流动方向为电流方向。
12.
an electric current that flows in one direction steadily.
一直稳定地沿一个方向流动的电流。
13.
(electricity) of a current flowing in one direction only; not alternating.
（电学）只沿着一个方向的电流；没有交替。
14.
Discussion about the method of back-EMF commutation for brushless DC motor
无刷直流电机反电势换向方法的探讨
15.
Directional Overcurrent Protection for Distribution Systems Containing Distributed Generation
含分布式电源的配电网方向过流保护
16.
The current is in the same direction as the motion of the positive particles.
电流方向与带正电的粒子运动方面相同。
17.
Direct current flows in one direction only. Alternating current flows first in one direction and then in the other.
直流电流仅向一个方向流动,而交流电流则先向一个方阿流动,继而又向另一个方向流动
18.
A current that flows in an opposite direction to the flow of another current.
逆流，反向电流；逆电流与另一水流或电流的流向相反的水流或电流