继而从发电机理论得到了电离层电位及层电流密度在北半球的分布和变化。
Furthermore the distribution and variation of the electrostatic potential and layer ionospheric current density at the northern hemisphere are calculated by the dynamo theory.
在电铸过程中，电铸阳极的轮廓和位置决定了阴极表面电流密度的分布，并最终影响电铸层的均匀性。
During the electroforming, the current density distribution on the cathode surface is decided by the anode profile and its position, which will influence the uniformity of the deposit finally.
电铸阳极的形状和位置决定了阴极表面电流密度的分布，并最终影响金属沉积层分布的均匀性及其材料性能。
In the electroforming process, the anode electrode shape and position determine the current density distribution on the cathode and so the distribution and properties of the deposited metal.
继而从发电机理论得到了电离层电位及层电流密度在北半球的分布和变化。
Furthermore, the distribution and variation of the electrostatic potential and layer ionospheric current density at the Northern Hemisphere are calculated by the dynamo theory.
将任意分布的电流源产生的电磁场看作是电偶极子产生的电磁场的叠加，利用镜像法推导了上半空间中的垂直直流电偶极子在两层媒质中产生电磁场的解析解。
The analytical expressions of the electromagnetic field generated by the DC electric dipole in the upper space for the two-layer mode were obtained by using the method of mirror image.
根据裂纹的特点，可以把它近似为一个没有厚度的面缺陷，其作用由分布在裂纹面上的等效电流偶极子层代替。
Considering that the crack thickness is usually very small, it can be taken as a'surface defect' with zero thickness.
研究了多层金属互连网络的热学模型，详细计算了不同的介质材料、金属线间距、金属层间距和电流密度对多层金属互连线温度分布的影响。
Different dielectric material, metal wire separation, metal level separation and current density for impact of multilevel metal interconnects are calculated in detail.
研究了多层金属互连网络的热学模型，详细计算了不同的介质材料、金属线间距、金属层间距和电流密度对多层金属互连线温度分布的影响。
Different dielectric material, metal wire separation, metal level separation and current density for impact of multilevel metal interconnects are calculated in detail.
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