通常设计压缩函数有两种方法：一、利用某些数学工具专为哈希目的而设计一个压缩函数，二、利用现有的密码算法如分组密码来作为压缩函数等。
For the design of a compression function one can either start from scratch and build a function specific for the purpose of hashing or use existing cryptographic building blocks such as block ciphers.
它是别人或你自己写的，但是你可以压缩你所有的想法，或者你这个东西里面的功能叫做一个函数。
It's something that someone else wrote or maybe you wrote, but you can encapsulate all of your ideas or your functionality inside this thing called a function.
本文压缩文档中提供了从DTD创建标记表的实用程序函数。
A utility function to create a taglist from a DTD is provided in the article archive.
同时该函数的用法进行了扩展和压缩。
The utility of this function has also expanded and contracted at the same time.
它使用了一个函数(此段代码中的cellfuncs)数组，其中的每个函数都用来压缩或转换数据，以便将数据放入表的单元格内。
It USES an array of functions (cellfuncs in the code) where each function is used to extract and transform the data so it can be put into a table cell.
通常，函数make_instance会将xml化的数据格式压缩成一个行，该行之后的代码都是Python代码。
The function make_instance generally reduces thought of the XML-ness of data formats to a single line; after that, it's just Python.
有两个选择：您可以从与本文相关的压缩文件中提取名为test .py的文件，也可以在编辑器中键入函数，然后将文件保存为test .py。
You have two options: you can extract the file called test. py from the zip file associated with this article or you can type the function into an editor and save the file as test.py.
实际上，在添加data函数(如下所示)之前，通常都必须将所需信息压缩到一个可用变量内。
In fact, before the data functions were added (see below), you usually had to squeeze the information you needed into one of the available variables.
散列函数能够将大量数据压缩为体积更小的消息摘要。
A hash function can compress a large amount of data into smaller messages.
在诊断模型中，应用APEX网络提取分类信息，压缩向量空间维数，利用前馈网络建立其类型识别函数。
In the model, using APEX network extracts classification information and condenses vector space dimensions, making use of feedforward network establishes the classification recognition function.
大多数情况下，这种情况不会发生，哈希函数需要把较大的关键字值范围压缩成较小的数组下标的范围。
In most cases neither of these situations exist, and the hash function will need to compress a larger range of keys into a smaller range of index Numbers.
证明过程中主要应用了分析中的压缩映象原理和一些空间的性质，通过构造可计算函数，来把解从一个区间延拓到整个空间。
We mainly apply the contraction principle in analysis and properties of some Spaces. By the computable functions constructed, we extend the solution from the internal to the entire space.
由于进化单元和最优函数单元是并行工作的，而且遗传操作的大部分都由硬件完成，故压缩速度很高。
Because the evolution unit and the best - function unit are parallel while they are working, and most of the genetic operation is completed by hardware, the speed of compression is very high.
压缩包中是一些可以直接应用在工程计算中的函数。
Is compressed package that can be directly used in the calculation of the function works.
采用快速模拟退火算法来计算分形插值函数的关键参数——纵向比例因子，进一步加快了数据压缩的速度。
Fast simulated annealing is used in calculating the key parameter of fractal interpolation function - vertical scaling factor, thus makes further improvement of data compression speed.
通过构造特别的映射、整函数和BP神经网络，获得一套基于神经网络的无损数据压缩方案。
A lossless data compression scheme based on neural network is obtained through the structure specific mapping, integral function and BP neural network.
提出了一种生物质压缩成型过程的优化目标函数。
The Optimization objective function of the biomass Compression molding process had been made.
图像分形压缩的原理是利用图像中的局部自相似性来构造局部迭代函数系统。
The principle of fractal image compression is that local self-similarity form a Local Iterated Function System.
利用已知的压缩因子分子动力学模拟数据，回归得到了这两个径向分布函数，从而建立了一个新的方阱流体状态方程。
The molecular dynamic data of compressibility factor are used to regress this two localized radial distribution functions. Therefore, a new equation of state of square well fluids is established.
实验结果表明，直方图相交匹配函数是一种有效的图像压缩评测准则。
The experimental results show that the histogram cross matching function is a useful criterion for measuring the performance of compressed images.
压缩和复原阻尼力主要由三部分构成，即电流变液基础粘度引起的本底阻尼力，电场强度函数的电致阻尼力和气室气体引起的压力。
There are three sections of damping force, and they are background damping force of a fluid viscosity, electric damping force of applied electric field and pressure of gas.
任何你所添加的方法和函数必须以分号“；”结尾-否则当压缩的时候代码会出错。
Any methods or functions you attach must have a semicolon (;) at the end - otherwise the code will break when compressed.
在压缩过程中以函数进化的方式，使该进化型硬件能够根据图像的特点来探索最优预测函数。
In the process of the image compression, the use of evolution - function makes this evolvable hardware be able to search for the best prediction function.
在压缩过程中以函数进化的方式，使该硬件能够根据图像的特点来探索最优预测函数。
In the process of compression the function evolution way makes the hardware can explore the optimized prediction function according to image characteristics.
冲击压力、内能和冲击温度被计算为压缩度的函数。
Shock pressure, internal energy and shock temperature were calculated as function of compression.
本文总结了线性调频信号的许多有用特性，讨论了近似于匹配滤波器的压缩网络传递函数。
At the present paper the available properties of the linear FM signal are summed up. And the transfer function of the compression network analogous to a matched filter is discussed.
本文总结了线性调频信号的许多有用特性，讨论了近似于匹配滤波器的压缩网络传递函数。
At the present paper the available properties of the linear FM signal are summed up. And the transfer function of the compression network analogous to a matched filter is discussed.
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