The meter with which we check power is a wattmeter.
我們用來檢查功率的儀表是瓦特計.
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She shattered the chattering wattmeter in the chaos.
她在混亂中打碎了格格作響的瓦特計.
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A reverse power relay is a relay a wattmeter that senses the direction of power flow.
逆功率繼電器,是指帶瓦特計的繼電器,用來感知電流的方向.
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