Reduce the current density.

降低电流密度。

Operating current density is too high.

操作电流密度过高。

Current density has great effect on the surface morphology.

电流密度对铸层表面形态有较大的影响。

The samples were annealed under different electrical current density.

样品在不同电流密度下进行了处理。

The overvoltage varies inversely with the current density to some extent.

超电压在某种程度上随电流密度成反比地变化。