工学 多能互补发电系统 释 energy efficiency 能源利用率 能源中能量被有效利用的程度。系按热力学第一定律对过程（系统或设备）能量利用程度的度量。又称一次能源利用率。
计算机硬件 计算机维护 释文 power utility efficiency 能源利用率
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