如果您使用的是一组全充的AA电池来提供电压和电流，那么它们只能支撑几个小时。
If you use a set of fully charged AA size batteries to provide voltage and current they last only a few hours.
稳态下潜供电流和恢复电压幅值是潜供电弧熄灭的两个决定性因素。
The amplitudes of secondary arc current and recovery voltage are two decisive factors to extinguish secondary arc.
只要光一直照在这两种材料上，光电池就能不断提供电压和电流。
As long as light falls on the two materials, the photovoltaic Battery can continue to provide voltage and current.
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