- one of a set of unrelated units that form the basis of a system of units. For example, the metre, kilogram, and second are fundamental units of the SI system
单词 | fundamental unit |
释义 | WordReference Random House Unabridged Dictionary of American English © 2024 fun′damen′tal u′nit, [Physics.]
Collins Concise English Dictionary © HarperCollins Publishers:: fundamental unit n
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