英语词汇“masslessness”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	masslessness
释义	WordReference Random House Unabridged Dictionary of American English © 2024 mass•less (mas′lis),USA pronunciation adj. [Physics.] Physicspertaining to an elementary particle having zero rest mass, as a photon. mass + -less 1875–80 mass′less•ness, n.
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