虽然1TBSATA驱动器和一个300GB的光纤通道驱动器的实际功率差异相差不远，但瓦特/容量（单位容量的能耗）的成本差异极大。
While the actual wattage difference between a 1 TB SATA drive and a 300 GB Fibre Channel drive is marginal, the cost difference on a watt-per-capacity basis is significant.
瓦特是用来测量电路中消耗的功率的一种单位。
The watt is the unit for measuring the power expended in the circuit.
功率：做功的速率，用每单位时间内所做的功的量来表示，通常用瓦特和马力为单位。
Physics The rate at which work is done, expressed as the amount of work per unit time and commonly measured in units such as the watt and horsepower.
瓦特修改了原有的动力单位“马力”的计算方法，人们为纪念他，将功率的单位命名为瓦特。
Watt devised the original calculation to define 'horsepower' and the unit of electrical power was named after him.
瓦特修改了原有的动力单位“马力”的计算方法，人们为纪念他，将功率的单位命名为瓦特。
Watt devised the original calculation to define 'horsepower' and the unit of electrical power was named after him.
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