... electric charge time constant 充电时间常数 electric charge volume density 电荷体密度 electric chronograph 电动记时器 ...
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电荷面密度 areic charge, surface density of charge σ 电荷体密度 volumic charge,volume density of charge ρ,(η) 电流密度 electric current density J,(S) ..
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... 体密度；容积密度 volume density 电荷体密度 volume density of charge 体积剂量 volume dose ...
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对于满足一定条件的脉冲星系统，证明了在极轴处的等离子体的角速度和电荷密度趋于零。
For the pulsar system which satisfies some conditions, we proved that the angular velocity of plasma and the charge density go to zero at the pole.
实验结果表明等离子体密度随激光能量的提高而增大，而且激光等离子体的电荷通量大于燃烧流的电荷通量。
The density of plasma rises with increase of laser energy, and the charge flux of plasma is larger than that of combustion flow.
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