watt-meter

基本解释

It's a watt meter.
这是个瓦特计。
The error analyze of artificial reactive watt meter
跨相接线无功电度表的方法误差
It is laid emphases on introducing the development of the watt meters, and the working theories of the induct meters and the electronic meters are illustrated in brief.
摘要重点介绍了电能表技术的发展历程，并简要阐明了感应式电能表、电子式电能表等的工作原理。
The Evaluation of Uncertainty in the Testing of Amperemeter Voltmeter and Watt Meter
三表检定的不确定度评定
In the picture a man is seen observing a meter.
你在图中可以看见一个人在观察仪表。