the SI unit of power, equivalent to one joule per second, corresponding to the rate of energy in an electric circuit where the potential difference is one volt and the current one ampere
瓦（特）（国际单位制中的功率单位）。
James (1736—1819), Scottish engineer. Among his many innovations he greatly improved the efficiency of the Newcomen steam engine, which was then adopted for a variety of purposes. He also introduced the term
瓦特，詹姆斯（１７３６—１８１９，苏格兰工程师；有众多发明，其中之一是极大改进了纽科门蒸汽机的效率，使其适合多种用途；还首先使用了“马力”这一术语）。
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wattn.瓦；（Watt）人名：瓦特
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waitv.等候；等待；迫不及待；侍候进餐；当侍者；等着；推迟；在路边临时停车；等候…的时机
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wantv.想要；想做；渴望；缺乏；缺少；需要；想请教；想跟…讲话；缉拿；追捕
"late 19th cent.: named after J．