n.  瓦，瓦特（电功率单位）

• kilowatt   n. 千瓦

• gigawatt   n. 千兆瓦；十亿瓦特

• a 100-watt bulb  100瓦的灯泡

• According to Harry Valentine, a Canadian engineer who is researching modern steam technology, a special tank measuring 2 by 10 metres could store over 750 kilowatt hours of energy as high-pressure steam, enough to pull a 2-car train for an hour or so. 可以储存超过750千瓦时的电能

• Today, energy storage is a $33 billion global industry that generates nearly 100 gigawatt-hours of electricity per year. 每年产生近100千兆瓦时的电量

BrE /əˌbriːviˈeɪʃn/