The electric potential and the field of point charge are resolved with a special function.
利用特殊函数求解电势、电场，计算了点电荷与磁偶极子相互作用的电磁角动量。
Among the dispute, the key and hard point is the one concerning estate service charge.
在众多的物业管理纠纷中，涉及物业服务收费的纠纷又是其中的重点和难点。
Current is the rate of flow of electric charge passing a point.
电流是电荷流过—个点的速率。
Supermarkets often charge too much for goods. Avocados are a case in point.
超市的东西总是要价太高，鳄梨就是最好的例子。
The amount of electric charge flowing past a specified circuit point per unit time.
测量在一定时间内通过导体横界面的电量的单位。
The amount of electric charge flowing past a specified circuit point per unit time.
测量在一定时间内通过导体横界面的电量的单位。
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