迁移电流是指主体溶液中的离子,受静电引力的作用到达电极表面,在电极上还原而产生的电流。由于熔丝-负荷开关式组合电器的三相熔断器熔化具有时间差,三相熔断器中有一相首先断开后,撞击器动作,此时可能出现另两相熔断器尚未熄弧开断,而撞击器出击形成由负荷开关切断故障电流的现象,即原本由熔断器承担的开断任务转移给负荷开关承担。因此转移电流是指熔短器与负荷开关转换职能时的三相对称电流。迁移电流是我们在选用组合电器时应注意的一个重要指标。
近年来,细胞在电场中迁移的有关研究较多,而用电流强度作为参数,观察电流直接作用下,细胞增殖情况的研究较少。
In a few years there are some researches about cell migration in the electrical fields, but the reports about cell proliferation influenced directly by electrical current are hardly found.
电迁移是金属原子沿着电流方向的移动。
Electromigration is the movement of metal atoms in the direction of current flow.
实验结果表明,随着电流密度的增大,再生液的硫迁移比、硫酸浓缩倍率增大,电流效率降低。
It is pointed that with the increase of current density, the sulfur transfer ratio of regeneration liquor and the vitriol concentrating ratio will go up while the current efficiency will fall down.
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