mass-energy
短语[医]质能
词形变化
mass-energies
复数
释义与例句
n.
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1.
Mass and energy as a unified concept.
可数 不可数 物理Whereas in classical physics mass and energy are distinct concepts, on relativistic scales, they become indistinguishable and are replaced by mass-energy.
In higher-energy physics, mass and energy eventually become meaningless as individual concepts; a particle's so-called "mass" is actually mass-energy and is often given equivalently in units of either mass (GeV/c²) or energy (GeV).
For equations normalized with Planck units, the quantities of mass and energy become numerically identical, revealing their true nature as mass-energy.
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2.
The energy associated with any given mass according to special relativity, E = mc².
可数 不可数
adj.
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1.
mass-to-energy
Mass-energy conversion occurs during nuclear fusion and fission.