名词
中文翻译：体积电荷
同义词：
['volume capacity', 'volumetric charge', 'volumetric capacitance']
例句：
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1. The battery's voltage is measured in volts.
电池的电压以伏特为单位测量。
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2. The electric field inside the vacuum tube is a volume charge.
真空管内部的电场是一个体积电荷。
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3. The volume charge of the capacitor is calculated using the formula C = Q / V.
电容器的体积电荷用公式C = Q / V计算得出。