生活中的电池寿命最多可以在保持恒定电流的LED。
Life expectancy in most of the battery can be maintained during the constant current LED.
涟波电流应被保持在15%以下。
从小电流到大电流都可以保持稳定电弧。
Stable electric arc can be ensured from undercurrent to high current.
现在的问题是- - -如何做这个电流始终保持相同的方向？
The question is — how does this current always maintains the same direction?
当电压保持不变时，电流和电阻成反比。
The voltage being kept constant, the current varies inversely with the resistance.
当电压保持不变时，电流和电阻成反比。
The voltage being kept constant, the current varies inversely with the resistance.
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