Electrical storage devices known as capacitors charge and discharge very quickly, but because they hold their charge on the surface of metal plates, their storage capacity is limited.

电荷存储元件——电容器，可以快速地充放电，但是因为电荷被存储在电容器金属片的表面，所以电荷容量有限。

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The experimental results showed that, before practical application, the initial capacity and comprehensive performance of stored battery can be obviously incr eased after some charge-discharge cycles.

结果表明：长期搁置后的蓄电池在使用前进行几次充放电循环，其有效容量和综合性能明显得到提高。

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Therefore, almost no diminishment of discharge capacity occurs, even after many discharge and charge cycles.

因此，几乎没有放电能力被削弱时，即使经过多次放电和充电周期。

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