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单词 mass-energy equivalence
释义
mass-en·er·gy equivalence (măsĕnər-jē)
n.
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.
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更新时间:2024/9/20 6:21:21