Use imported well-known charging and discharging condenser, it has stable capacity and long service life;
采用进口名牌急充放电电容器，容量稳定，寿命长。
2
The charging of a condenser from a battery is not unlike the filling of tank from a reservoir.
电池给电容器充电就像油库给油箱加油一样。
3
The magnetic field distribution produced by displacement current in charging circular parallel plate condenser is discussed by using the concept of magnetic potential.