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单词 friendly number
释义
friendly number
  • 简明释义
  • 友谊数:在数论中,友谊数是指两个正整数m和n满足σ(m)/m = σ(n)/n的关系,其中σ(n)是因数函数,则称它们是朋友,此两个整数互为友谊数。
  • 网络释义
  • 1

    ?亲和数

    ... 倾角;斜角:inclination 亲和数friendly number 且:and ...

  • 2

    ?孤独数

    ... 孤独室 solitary room 孤独数 friendly number 孤独雄 lone male ...

短语
  • 双语例句
  • 1
    There are a number of Web sites that list environmentally friendly hotels, B&B's and lodges around the world.
    有许多网站列出了世界各地的环保旅馆、民宿和旅馆。
  • 2
    Which actually is son of bonacci which is the name of his father who was apparently a very friendly guy. First of all, does anyone know what a Fibonacci number is? Wow.
    斐波纳契,它是波纳契的儿子,波纳契是它父亲的名字,听上去是个友好的男人不是吗,谁知道斐波纳契数列?
  • 3
    While existing cities look for ways of becoming more environmentally friendly, a number of new ones are planned that intend to be totally green.
    当现存的城市正在寻求加强环保的途径之时,一些新建的城市被设计走彻底环保的道路。
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更新时间:2025/3/31 5:57:31