测试电气和电子设备和组件的连续性，电流，电压和电阻。
Test electrical and electronic equipment and components for continuity, current, voltage and resistance.
测试电气和电子设备的连续性，电流，电压和电阻。
Test electrical and electronic equipment and components for continuity, current, voltage and resistance.
测试电气和电子设备的连续性，电流，电压和电阻。
Test electrical and electronic equipment and components for continuity, current, voltage and resistance.
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