electronic phase-angle meter

例句：

1. 1.This electronic phase-angle meter is very accurate and easy to use.
   这个电子相位角表非常准确且易于使用。
2. 2.The engineer used the electronic phase-angle meter to measure the angle of the beam.
   工程师使用电子相位角表测量光束的角度。
3. 3.The electronic phase-angle meter was used to detect faults in the electrical system.
   电子相位角表被用来检测电气系统中的故障。