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

• 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。
• With each recursive step, cross products with one additional Permutation Group are formed.
  伴随每个递归步骤，会形成带有一个额外置换群的向量积。
• 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。
• 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 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。
• 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。
• 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。
• 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。
• 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。
• 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。