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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。
    • Using gamma function, the paper popularized the common conceptions of the usual factorial, permutation and combination and proved some combination formulas in common use.
      依照伽马函数,对通常的阶乘、排列、组合的概念进行了推广,并证明了一些常用的组合公式。
    • A sort of3-element permutation with repetitions allowed is studied, and a recurrence relation in general condition is found.
      研究一类特殊的可重复排列性质,建立了一般情形下求这类排列数的递推公式,导出了一些特殊情形下的具体计算公式。
    • 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。
    • 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。
    • 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 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。
    • 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 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。
    • 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。