查询词典 permutations

More than a dozen variable factors could interact ,with their permutations running into the thousandsTom Clancy

一打以上的可变因素可以相互作用，使它们的排列成成千上万汤姆·克兰西

Using the theories of probability, algebra, cryptography, Information theory and "Hybrid technique" and "Reduction theory" as tools, and basing on the notion of computational indistinguishability, properties and constructions of DES-model permutations are studied in this dissertation and some useful conclusions are given.

本文综合运用概率论、代数学、密码学、信息论等相关学科的知识及"混合技巧"和"归约论证"思想，以计算不可分辨性为基础，研究了DES型置换的性质和构造，得到较为实用的结果。

In essence, stream cipher is such a pseudorandom generator that its chaos sequence of output and random sequence are computational indistinguishability; and the aim in designing block cipher materially is to design a pseudorandom permutation which is computationally indistinguishable from random permutations.

实际上，序列密码本质上就是一个伪随机生成器G，其输出的乱数序列和随机序列是计算不可分辨的；而分组密码的设计目标实质上就是设计一个伪随机置换，它与随机置换是计算不可分辨的。

It is important to note, however, that there are many permutations of instructional design and development teams.

但是需要重点说明的是，教学设计与开发人员已经有了很大的变化。

We make use of a normal element and circular permutations to construct polynomials over the intermediate extension field between F_q and F_ denoted by F_ where s divides t. The polynomials we constructed are F_q-linearly independent and return elements in F_q when they are evaluated at elements of the extension fields.

结合Reed-Solomon码的构造特点，我们将Chaoping Xing与San Ling所构造的线性码的方法推广到有限域的任意次扩张上，首先利用正规元和循环排列来构造系数属于F_q和F_q的任意次扩域F_之间的中间域的具有特殊性质的多项式，中间域记为F_，其中s为t的真因子，由正规元的选择可以保证所构造多项式的F_q-线性无关性，并且这些多项式在扩域F_中取值都属于F_q，从而构造出一类q元线性码。

By using this algorithm, all permutations can be systematically generated in lexicographic order.

藉由此演算法，我们可以依字母大小序地系统化产生所有的n项目排。

The library provides two permutation algorithms that generate the permutations of a sequence in lexicographical order.

标准库提供两个排列算法，按字典序产生序列的排列。

For improving the parallelizability of the co-processor, a set of new efficient instruction is introduced, including S-boxes substitution, general bit permutations, arbitrary rotates, modular arithmetic and so on.

从提高并行度角度出发，为使用频率非常高的密码操作，包括S盒、置换、模乘、模加等九种运算设计了专用指令。

If we allow these 10105 molecules to randomly permutate, the rate of permutation is ten thousand (104) times per second. If the age of the universe was thirty billion years (1018 seconds), then from the beginning of the universe until now, the total permutations were 10127 times (10105x1018x104), which is not even enough time to develop one correct nucleotide sequence for one molecule of DNA.

如果让这10105个分子随机组合，令组合的速率为每秒一万次（104），假设宇宙的年龄为三百亿年（1018秒），那么，从宇宙形成到现在，一共可以产生的组合方式是10127次（10105x1018x104），还不足以产生一个有正确核亘酸排列组合序列的DNA分子2！

Expansionism in Sarah Orne Jewett's Country of the Pointed Firs (1896) and later Dunnet Landing stories (1899-1910), Willa Cather's A Lost Lady (1923) and Edna Ferber's Giant (1952). Focusing on the frontiers of Maine, Nebraska and Texas as borderland territories with mythic boundaries and displaced immigrant populations, I trace the permutations of empire and the growth of capitalism as experienced through the domestic politics of both home and nation.

本论文探讨女性如何谈判机构与美国的扩张莎拉奥恩朱的国家的尖杉杉（ 1896年），后来邓尼特着陆的故事（ 1899年至10年），薇拉凯瑟的丢失夫人（ 1923年）和埃德娜Ferber的大熊猫（ 1952年）。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。