C1 noun #15,234 最常用

a union of two disjoint sets in which every element is the sum of an element from each of the disjoint sets

direct sum 30秒了解

  • (noun) a union of two disjoint sets in which every element is the sum of an element from each of the disjoint sets

Meanings

  1. 1
    noun a union of two disjoint sets in which every element is the sum of an element from each of the disjoint sets
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