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单词
rest mass
释义
rest mass
noun
Physics
The mass of a body when at rest.
The concept of the rest mass derives from special relativity.
...
The neutrino was known from the start to be an extraordinarily light particle, perhaps massless, since its rest mass could never be detected.
Any object with a non-zero rest mass (like a dust mote) can never reach light speed.
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更新时间:2025/6/8 14:59:06