For example, the electric field or gravitational field is given by the gradient of the gravitational or electric potential.
例如由重力势梯度给出的重力场，或由电势梯度给出的电场。
You know, if you want to measure the potential energy of something in a gravitational field, you have to define the zero somewhere, right, because it's arbitrary.
你知道，如果你想测量重力场，中某种东西的势能，你需要，在某处定义一个零点，对吧？
Consequent differential form and integral form of gravitational potential are deduced from the two laws of gravitational field.
根据引力场的两个定理，导出了引力势的微分和积分形式。
Consequent differential form and integral form of gravitational potential are deduced from the two laws of gravitational field.
根据引力场的两个定理，导出了引力势的微分和积分形式。
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