The negative pole of a battery is the part which releases electrons.
电池的负极是释放电子的一端。
The action of the negative pole of a magnetic needle is just as real as the action of the positive pole.
一根磁针的磁极作用，无论正负都是一样的真实。
Lithium battery is a battery whose Lithium is used as active substance of negative pole.
一次锂电池是以金属锂作为负极活性物质的现代先进电池，具有广阔的应用前景。
The action of the negative pole of a magnetic needle is just as real as the action of the positive pole .
这个效应表明，有一种垂直于圈平面的力作用在磁极上。
The action of the negative pole of a magnetic needle is just as real as the action of the positive pole .
这个效应表明，有一种垂直于圈平面的力作用在磁极上。
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