laser powermeter

例句：

1. 1. This laser power meter can measure the energy output of a laser beam.
   这个激光功率计可以测量激光束的能量输出。
2. 2. The laser power meter is used to measure the power consumption of various devices.
   激光功率计用于测量各种设备的功耗。
3. 3. The laser power meter was used to monitor the energy consumption during the experiment.
   激光功率计被用来监测实验过程中的能源消耗。