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单词 Set union
释义

Set union

原声例句
BBC 听力 2020年6月合集

Kim Yong-hee said he had been sacked for trying to set up a union. Samsung has now apologized.

该男子名为Kim Yong-hee,他表示自己因尝试设立联盟而被解雇。三星已道歉。

BBC 听力 2022年4月合集

Workers at an Amazon warehouse in the United States have taken the unprecedented step of voting to set up a trade union.

美国亚马逊一家仓库的工人们史无前例地投票决定成立工会。

中文百科

并集 Union (set theory)

(重定向自Set union)
A和B的并集

在集合论和数学的其他分支中,一组集合的并集(**叫做联集、大陆和港澳叫做并集)是这些集合的所有元素构成的集合,而不包含其他元素。

英语百科

Union (set theory) 并集

(重定向自Set union)

In set theory, the union (denoted by ∪) of a collection of sets is the set of all distinct elements in the collection. It is one of the fundamental operations through which sets can be combined and related to each other.

For explanation of the symbols used in this article, refer to the table of mathematical symbols.

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更新时间:2025/6/17 23:53:36