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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

    • This way, any permutation of role implementations by the different vendors can be configured.
      这样就可以配置不同供应商提供的角色实现的任意排列组合。
    • 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。
    • Cyclic shift permutation structure is an important part of partial parallel decoder for quasi-cyclic LDPC codes.
      循环移位置换单元是准循环LDPC码的部分并行译码器的重要组成部分。
    • 2 perform the following permutation on the data block.
      对数据块进行如下置换。
    • Random permutation and sharpening are basic methods of image processing.
      空间域随机置乱和锐化滤波是基本的图像处理方法。
    • Such a permutation is called a derangement.
      这样的一个排列称为错位排列。
    • Its of great practical value for computing the shift distribution of an order-given permutation.
      研究任意阶置换的漂移分布具有重要的实用价值。
    • As the application of orthomorphic permutations in cryptography, we simply emphasize the advantage provided by such permutation in increasing the security of a block cipher.
      简要强调了利用正形置换强化分组密码的优点;利用正形置换设计了一种密码安全布尔函数。
    • The single permutation generates from Quasi-single permutation with the insertion point, which is up to mass region.
      其中的单排列可由准单排列插点生成,如何插点取决于排列中的单质区。
    • 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。