watt-meter

基本解释

It's a watt meter.
這是個瓦特計。
The error analyze of artificial reactive watt meter
跨相接線無功電度表的方法誤差
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.
摘要重點介紹了電能表技術的發展歷程，竝簡要闡明了感應式電能表、電子式電能表等的工作原理。
The Evaluation of Uncertainty in the Testing of Amperemeter Voltmeter and Watt Meter
三表檢定的不確定度評定
In the picture a man is seen observing a meter.
你在圖中可以看見一個人在觀察儀表。