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单词 volt-ampere
释义 volt-ampere
 /vohlt"am"pear, -am pear"/, n. Elect.
 an electric measurement unit, equal to the product of one volt and one ampere, equivalent to one watt for direct current systems and a unit of apparent power for alternating current systems. Abbr.: VA
 [1895-1900]
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更新时间:2024/11/10 12:43:54