传统的电池是在两根固定电极中储存化学能的；而流体电池则将其储存在浸入电极，即液体电解质中。

Traditional batteries store the chemical energy in two solid electrodes; flow batteries store it in the liquid electrolyte in which the electrodes are immersed.

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固定式燃料电池是最大、功率最强的燃料电池。

Stationary fuel cells are the largest, most powerful fuel cells.

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现在，一晃一晃固定在露托家铁皮屋顶上的，是一架独立式太阳能电池板，可以为手机提供足够的电力，并点亮了4只带开关的吊灯。

Now balanced precariously atop their tin roof, a lone solar panel provides enough electricity to charge the phone and run four bright overhead lights with switches.

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