kilowatt-hour meter

例句：

1. 1.The power company installed a kilowatt-hour meter in the house to monitor energy usage.
   电力公司为这户人家安装了千瓦时表，以监测能源使用情况。
2. 2.The farmer used a kilowatt-hour meter to track the amount of electricity his farm consumed.
   这位农民使用千瓦时表来追踪他的农场消耗的电量。
3. 3.The engineer tested the kilowatt-hour meter to ensure it was functioning correctly.
   工程师测试了千瓦时表以确保其正常工作。