By calculating, it can be found that the potential energy in magnetic field is different from the normal potential energy, it is a function of both coordinates and time.
通过计算发现，磁场中的势能不同于通常意义的势能，它既可以是位置坐标的函数，也可以是时间的函数。
According to the characters of the work of magnetic force, the concept of potential energy can be brought in the non conservative system-magnetic field.
根据磁力做功的特点，在非保守场———磁场中也可以引入势能的概念。
According to the characters of the work of magnetic force, the concept of potential energy can be brought in the non conservative system-magnetic field.
根据磁力做功的特点，在非保守场———磁场中也可以引入势能的概念。
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