Electrostatic field is a very important chapter in electromagnetics and the strength of electric field is one of the two basic physical quantities describing the property of electrostatic field.
静电场是电磁学中非常重要的一章，而电场强度是描述静电场性质的两个基本物理量之一。
Electrostatic field is a very important chapter in electromagnetics and the strength of electric field is one of the two basic physical quantities describing the property of electrostatic field.
静电场是电磁学中非常重要的一章，而电场强度是描述静电场性质的两个基本物理量之一。
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