电力计

例句：

1. 1. The power meter is used to measure the amount of electricity consumed by a household.
   电表用于测量家庭消耗的电量。
2. 2. The electrician installed the new power meter in the house.
   电工在房子里安装了新的电表。
3. 3. The power meter was broken, and we had to replace it immediately.
   电表坏了，我们不得不立即更换它。