专业字典>英语词典>permutation翻译和用法

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

    • 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。
    • 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。
    • 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。
    • 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。
    • 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。
    • 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。
    • 2 perform the following permutation on the data block.
      对数据块进行如下置换。
    • Actually, I could have used another permutation of these points. But, let's use this.
      其实。。我本来可以,用别的表示这些点,呃,不过还是用这些吧。
    • The method used a parity-check matrix of a short LDPC code as its mother matrix upon which a long code was constructed with circulant permutation matrices.
      该方法利用一个短的LDPC码的校验矩阵作为其母矩阵,在此基础上采用循环置换矩阵构造一个长的LDPC码。
    • 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;