柠檬电池
the voltage was about the same as that for a lemon cell, but a bit higher.
电压与一个柠檬电池的电压类似,但稍微高一点。
we think this is because we have more zinc and copper in contact with the acid in the tub cell than in the lemon cell.
我们认为这是因为与柠檬电池相比在盆电池中有更大面积的锌和铜与酸接触。
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