我们只需要测量一下该电阻两端的电压。
All we need to do is measure the voltage across this resistor.
当连接到负载电阻两端的电压接近源的负载电阻接近无穷大(开路)。
When connected to a load resistance, the voltage across the source approaches infinity as the load resistance approaches infinity (an open circuit).
所述放电回路包括一放电二极管，该放电二极管并联于所述限流充电电阻两端；
The discharging loop includes a discharging diode connected to the current limiting charging resistance in parallel.
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