The article proceeds from the characteristic of doing work of electrostatic field strength and proves that electrostatic field 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。
The article proceeds from the characteristic of doing work of electrostatic field strength and proves that electrostatic field 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。
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