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

• Some Permutation Polynomials over Finite Fields and a Security Key Exchange Protocol
  有限域上几个置换多项式及一个密钥交换协议
• 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 deals with orthodox semirings whose additive idempotents satisfy permutation identities.
  本文主要研究加法幂等元满足置换等式的纯整半环。
• In this paper, a new sorting algorithm consisted of classification, in situ permutation and straight insertion is presented.
  基于此，本文提出了一种由分“档”、整体置换和局部直接插入排序所组成的新排序算法&分“档”置换插入排序法。
• A definite inner structure in finite element permutation is considered in this paper.
  文章研究了有限元排列一种确定的内部结构。
• 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。
• 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。
• 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。
• This classification is called the parity of the permutation analogous to the definition of parity of integers.
  这种分类叫作置换的奇偶性，类似于整数偶性的定义。
• 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。