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。
• 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。
• 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。
• 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。
• 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。
• We've tried every permutation possible for a Caesar shift.
  我们试验了凯撒密码的所有可能排列。
• 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
• 2 perform the following permutation on the data block.
  对数据块进行如下置换。
• With the formation of protoplasm by sheer permutation& combination of atoms, the life began here.
  随着原生质的形成它只是原子的排列组合生命诞生了。
• 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；