使用伏米，电流表和其他电子测量仪器和设备，检查和测试已安装电气设备及仪器，定位电气故障和检查其操作。
Inspect and test installed electrical equipment and apparatus to locate electrical faults and check their operation, using volt meters, ammeters and other electrical test instruments and equipment.
数字频率计是近代电子技术领域的重要测量工具之一，同时也是其他许多领域广泛应用的测量仪器。
Digital cymometer is one of the important measurement tools in the field of modern electronic technology, it is also widely used in many other areas of the measuring instruments.
数字频率计是近代电子技术领域的重要测量工具之一，同时也是其他许多领域广泛应用的测量仪器。
Digital cymometer is one of the important measurement tools in the field of modern electronic technology, it is also widely used in many other areas of the measuring instruments.
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