The article proceeds from the characteristic of doing work of electrostaticfieldstrength and proves that electrostaticfield is a conservative force field.
文章从静电场力作功的特点出发，说明静电场是保守力场。
2
Electrostaticfield 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。
3
If a metal tank is partly filled with charged liquid, such as petroleum products, the electrostatic potential and fieldstrength in the tank would become very high and hazardous.