名词
中文翻译：双半群
同义词：
['dual group', 'dual set例句：1. In the study of functional programming', 'dual semigroups are important objects to consider.（在功能编程研究中，双半群是重要的对象需要考虑。）2. The dual semigroup property is a key concept in the theory of linear transformations.（双半群性质是线性变换理论中的关键概念。）']
例句：
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1. In the study of functional programming, dual semigroups are important objects to consider.
在功能编程研究中，双半群是重要的对象需要考虑。
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2. The dual semigroup property is a key concept in the theory of linear transformations.
双半群性质是线性变换理论中的关键概念。
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3.The dual semigroup of a group is its group of cosets.
一个群的双半群是它的共轭类组。