形式定义就是,它在点P的重力势能,等于我，将物体从无穷远处,移动至点P所做的功。
The formal definition is that the gravitational potential energy at a point P is the work that I, Walter Lewin, have to do to bring that mass from infinity to that point P.
形式定义就是,它在点P的重力势能,等于我，将物体从无穷远处,移动至点P所做的功。
The formal definition is that the gravitational potential energy at a point P is the work that I, Walter Lewin, have to do to bring that mass from infinity to that point P.
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