Our main concern so far has been to say if we have a conservativeforcefield it means that the work of a force is the change in the energy.
目前为止,我们主要关心的是,如果在保守力场中,力所做的功是,能量的改变。
2
The article proceeds from the characteristic of doing work of electrostatic field strength and proves that electrostatic field is a conservativeforcefield.
文章从静电场力作功的特点出发,说明静电场是保守力场。
3
So, what that means concretely is if you have a forcefield that conservative, then you cannot build somehow some perpetual motion out of it.