瓦数功率数量，尤指电功率，用瓦特或千瓦表示。
An amount of power, especially electric power, expressed in watts or kilowatts.
更正系数是补退电费的重要依据，但更正系数中的功率因数角也是未知数。
Correction coefficient is important to electric charge refund, but its power factor Angle is unknown.
更正系数是补退电费的重要依据，但更正系数中的功率因数角也是未知数。
Correction coefficient is important to electric charge refund, but its power factor Angle is unknown.
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