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empty relation

  • 零关系

网络释义专业释义

  零关系

... empty matrix 空矩阵 empty relation 零关系 empty set 空集 ...

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  空关系

对于集合A,今后常用到的三个特殊关系: ⑴ 空关系Empty Relation ):由于(A×A,所以是A上的关系,称其为A上的 空关系 ; ⑵ 全(域)关系(Total Relation):由A(A(A×A,所以A×A是 A上的关系,...

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  • 空关系
    零关系
    空(属性)关系

·2,447,543篇论文数据,部分数据来源于NoteExpress

双语例句权威例句

  • This relation between empty and full in the facade allows for an excellent thermal performance, with a high degree of electric energy conservation.

    外观空缺密实之间关系提供卓越的热工性能高度节约电能

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  • The background sound of an environment in relation to which all foreground sounds are heard, such as the 'silence' of an empty room, conversation in a restaurant, or the stillness of a forest.

    环境背景声音所有听到突出声音比如房间里的“静默之声”,餐馆里谈话或者森林里沉寂

    youdao

  • Objective: To investigate the social support of the empty-nest elderly people lived in urban area and its relation with their mental health.

    结论:不同家庭结构城市空巢老人社会支持存在差异,社会支持影响城市空巢老人的心理健康状况。

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更多双语例句
  • He also explained that he was considering "the possibility of varying rates of council tax in relation to second homes and empty properties".

    BBC: Statement on empty homes

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