narrow-band-selective voltmeter

例句：

1. 1. The engineerused a narrow-band selective voltmeter to measure the resistance of the circuit.
   工程师使用窄带选择性电压表来测量电路的电阻。
2. 2. The technician carefully checkedthe accuracy of the narrow-band selectivevoltmeter before using it in theexperiment.
   技术人员在实验前仔细检查了窄带选择性电压表的准确性。
3. 3. The researcher found that the narrow-band selectivevoltmeter was not suitable for measuringhigh voltages.
   研究人员发现，窄带选择性电压表不适合用于测量高电压。