differential voltmeter

例句：

1. 1. The differential voltmeter was usedto measure the voltage difference between two pointson the circuit.
   差动电压表被用来测量电路上两点之间的电压差。
2. 2.The engineer used the differential voltmeterto detect any potential leaks in thesystem.
   工程师使用差动电压表来检测系统中的任何潜在泄漏。
3. 3. Thetechnician carefully checked the readings of the differential voltmeter before making any adjustments.
   技术人员在做出任何调整之前仔细检查了差动电压表的读数。