zero power-factor test

例句：

1. 1.The zero power-factor test is a crucial part of the electrical system's maintenance.
   零功率因数测试是电力系统维护中至关重要的一部分。
2. 2. During the zero power-factor test, the equipment was thoroughly inspected for any signs of wear or damage.
   在零功率因数测试期间，设备被彻底检查，以查找任何磨损或损坏的迹象。
3. 3.The zero power-factor test is used to determine the efficiency of the motor in its operation.
   零功率因数测试用于确定电机在其运行过程中的效率。