When resistance is constant, voltage is directly proportional to current.

当电阻恒定时，电压是瞬时的 与电流成正比。

Let's say this circuit has an inductor connected in series with a battery that has a constant voltage, V naught.

假设这个电路有一个电感器与一个具有恒定电压 V naught 的电池串联。

An ideal battery provides a constant voltage to a circuit, powered by its conversion of stored chemical energy to electrical energy.

理想的电池为电路提供恒定电压，由存储的化学能转换为电能供电。

They didn't fully understand what they were doing, so they couldn't figure out how to create a constant voltage to generate a steady flow of electricity.

他们不太了解自己在做什么，因此无法弄清楚如何产生恒定电压以产生稳定的电流。