n.伏特计，电压表

The voltmeter on the circuit showed a reading of 12 volts.
电路中的电压表显示读数为12伏特。
She carefully connected the voltmeter to measure the potential difference between the two wires.
她小心翼翼地将电压表连接起来，测量两根电线之间的电压差。
The engineer calibrated the digital voltmeter before conducting the electrical tests.
工程师在进行电气测试前校准了数字电压表。
He noticed that the voltmeter needle dipped when he touched the live wire.
他注意到当他触碰带电导线时，电压表指针下降。
A multimeter with a built-in voltmeter is useful for diagnosing car electrical problems.
带有内置电压表的多用表对于诊断汽车电气问题很有用。
The technician used a high-precision voltmeter to check the voltage output of the power supply.
技术人员使用高精度电压表检查电源供应的电压输出。
In a physics lab, students observed the voltmeter reading change as they varied the resistance in the circuit.
在物理实验室里，学生们观察到随着电路中电阻的变化，电压表读数也随之改变。
The voltmeter in the electrical panel indicated a surge in voltage, which could be a sign of an electrical fault.
电板上的电压表显示出电压突增，这可能是电气故障的迹象。
She set the range on the voltmeter to ensure accurate readings while testing the battery.
她在电压表上设置了范围，以确保在测试电池时能获得精确的读数。
The voltage regulator in the computer ensures that the voltmeter reading stays within safe limits.
计算机中的电压调节器保证电压表读数保持在安全范围内。