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。
Tests reveal that the bottom of the reinforcement cage corresponds to the minimum of the electric potential gradient curve and the inflexion of the electric potential curve.
根据充电法原理，结合模型桩试验，分析了钢筋笼周围的充电电场特征，结果表明钢筋笼的底端对应于电位梯度曲线的极小值点及电位曲线的拐点。
The electric field intensity distribution was acquired through potential gradient.
再通过电位梯度求得电场强度分布。
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