| 释义 |
mass-en·er·gy equivalence AHD[măsʹĕnʹər-jē] D.J.[ˈmæsˈenədʒiː]K.K.[ˈmæsˈɛnədʒi]n.（名词）- The physical principle that a measured quantity of energy is equivalent to a measured quantity of mass. The equivalence is expressed by Einstein's equation, E = mc2, where E represents energy, m the equivalent mass, and c the speed of light. 质能相当性：一定标准的能量等于一定标准的质量的物理原理。爱因斯坦的质能当量的等式是，E＝mc2，在此E代表能量，m为同等质量，c为光速
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