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

• 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。
• 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。
• 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。
• 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
• The authors proposed a permutation correction method which is easy to perform and can correct the biases very effectively.
  作者提出排列校正方法，可以成功地校正各偏差。
• 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；
• 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。
• 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。
• Other enumeration problems lead us to the study of orbits of permutation groups.
  其它的计数问题引导我们去研究置换群的轨道。
• 2 perform the following permutation on the data block.
  对数据块进行如下置换。