英语词汇“current density”是什么意思，“current density”的读音、用法及例句翻译-烛光网

词汇	current density
释义	current densityn.（名词） Symbol j, J Electricity The ratio of the magnitude of current flowing in a conductor to the cross-sectional area perpendicular to the current flow.符号 j, J 【电学】电流密度：在某一导体中流动的电流量与电流方向垂直的截面面积之间的比率 Physics The number of subatomic particles per unit time crossing a unit area in a designated plane perpendicular to the direction of movement of the particles.【物理学】粒子流密度：在与粒子的移动方向垂直的指定平面上每单位时间内通过每单位面积的亚原子粒子的数量
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