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permutation

英 [ˌpɜːmjuˈteɪʃn]

美 [ˌpɜːrmjuˈteɪʃn]

n.  排列(方式); 组合(方式); 置换

复数:permutations 

计算机

BNC.18648 / COCA.20172

牛津词典

    noun

    • 排列(方式);组合(方式);置换
      any of the different ways in which a set of things can be ordered
      1. The possible permutations of x, y and z are xyz, xzy, yxz, yzx, zxy and zyx.
        x、y和z的可能的组合方式为xyz、xzy、yxz、yzx、zxy和zyx。

    柯林斯词典

    • N-COUNT 排列
      Apermutationis one of the ways in which a number of things can be ordered or arranged.
      1. Variation among humans is limited to the possible permutations of our genes.
        人类的变异受限于我们的基因可能存在哪些排列。

    双语例句

    • Such a permutation is called a derangement.
      这样的一个排列称为错位排列。
    • The fast Fourier transform algorithm for the production of the permutation factor circulant matrices;
      给出了一类置换因子循环线性系统求解的一种快速算法。
    • Applications of Amplitude Modulation and Pixel Random Permutation Techniques in Double Random Phase Encryption System
      振幅调制和像素随机置换技术在双随机相位加密系统中的应用
    • We've tried every permutation possible for a Caesar shift.
      我们试验了凯撒密码的所有可能排列。
    • And it ensured the data security and integrity in the protocol entities exchange through encryption, authentication, digital signature and one-way permutation function.
      并通过加密、认证、数字签名和单向置换函数有效地保证了协议中实体交互数据的安全性和完整性。
    • The experimental result shows us a conjecture that there exists no such permutation over even dimensional space.
      通过试验给出了关于偶数维空间上几乎完善非线性幂置换的一个猜想;
    • By introducing the original permutation and the region, the conception of single permutation is proposed.
      在引入原排列和区的概念的基础上,提出了单排列的概念。
    • The security of the scheme is effectively improved by using chaotic modulation and permutation to the embedded watermark and making a expansion for the key space.
      通过时于嵌入的水印进行混沌调制和置乱,并扩展密钥空间,有效地改进了算法的安全性。
    • This paper explores the order problem of mark symbols in Classification for Chinese Libraries, and offers different opinions of the permutation order and using order of mark symbols.
      本文探讨了《中图法》中标记符号的顺序的问题。就标记符号的排列顺序与使用顺序提出不同的看法。
    • With the formation of protoplasm by sheer permutation& combination of atoms, the life began here.
      随着原生质的形成它只是原子的排列组合生命诞生了。