The resistance of the metal-filament lamp increases, and that of the carbon-filament lamp decreases with increase of current.
随着电流的增加，金属丝灯泡的电阻是增加的，而碳丝灯泡的电阻是减小的。
The resistance of the metal-filament lamp increases, and that of the carbon-filament lamp decreases with increase of current.
随着电流的增加，金属丝灯泡的电阻是增加的，而碳丝灯泡的电阻是减小的。
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