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单词 upper bound
释义

WordReference Random House Unabridged Dictionary of American English © 2024
upper bound, [Math.]
  1. Mathematicsan element greater than or equal to all the elements in a given set: 3 and 4 are upper bounds of the set consisting of 1, 2, and 3. Cf. bound 3 (def. 4), greatest lower bound, least upper bound, lower bound. 

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