overhead side volt-meter

例句：

1. 1.The overhead side volt-meter was used to measure the voltage across the circuit.
   顶部侧电压表用于测量电路两端的电压。
2. 2.The engineer carefully checked the overhead side volt-meter readings before making any adjustments.
   工程师在做出任何调整之前仔细检查了顶部侧电压表的读数。
3. 3. During maintenance, the technician had to replace the faulty overhead side volt-meter.
   维护期间，技术人员不得不更换故障的顶部侧电压表。