| 释义 |
internal energyn.Symbol U （名词）符号 U - The total kinetic and potential energy associated with the motions and relative positions of the molecules of an object, excluding the kinetic or potential energy of the object as a whole. An increase in internal energy results in a rise in temperature or a change in phase.内能：与物体分子运动或相对位置有关的全部能量和势能，不包括作为一个整体的运动能量和势能。内能的增加会导致温度的升高或位相的变化
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