Surveying the internal resistance of a sensitive electric current meter is a rather difficult and complicated electromagnetic experiment which is hard to get a high precision.
灵敏检流计内阻测量实验是电磁学实验中一个比较复杂有相当难度的实验，难就难在如何提高测量精度。
Demonstrating Electric Meter, Model J0403 has 14 ranges. It can serve as current detector in the experiment demonstration, measurement of micro current. DC voltage and DC resistance.
J 0403型高中演示电表共有十四档量程，供教学演示实验中作检流计，测量微小电流，测量直流电压、直流电阻。
This paper makes a research on the anti current shunt electric larceny technology for electronic electric energy meter of high-voltage power metering system.
基于此，本文针对电力计量系统防分流窃电技术进行了研究。
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