reference power

例句：

1. 1. The device requires a specific reference power to function properly.
   该设备需要特定的参考功率才能正常工作。
2. 2. The engineer used the reference power to calculate the efficiency of the machine.
   工程师使用参考功率来计算机器的效率。
3. 3. The reference power was adjusted to match the actual power consumption.
   参考功率被调整以匹配实际的电力消耗。