m
‪1米‬0.0 ‪V‬‪电场‬‪单向‬‪电压‬‪数值‬‪网格‬‪+1 nC‬‪-1 nC‬‪传感器‬
‪等势的‬‪0.000 ‪V‬‬20.0 ‪cm‬
‪电荷与电场‬