Just as the rate of the flow of water can be measured in gallonspersecond, so is the rate of the flow of electricity measured in amperes.
电流的流量用安培来计算,正像水的流量能够用每秒加仑数来计量一样。
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The production of Coca-Cola is equal to if Niagara falls flows at its normal rate of 1.5 million gallonspersecond instead of water. The falls will flow for straight 38 hours and 46 minutes.