A substitution matrix lets you assign match scores individually to each pair of symbols.
使用置换矩阵能够根据每对符号单独分配匹配得分。
For example, the BLOSUM (BLOcks SUbstitution Matrix) matrices for proteins are commonly used in BLAST searches; the values in the BLOSUM matrices were empirically determined.
例如，BLAST搜索中经常使用蛋白质的BLOSUM (BLOcksSUbstitution Matrix)矩阵；blosum矩阵的值就是根据实际经验确定的。
This paper introduces a completely nonsingular matrix based substitution permutation network that can effectively improve the performance of the block cipher against linear cryptanalysis.
论文介绍了一种基于全非奇异矩阵的代替置换网络，它可有效的提高分组密码抗线性密码分析的能力。
Based on this model, a new crypt structure called completely nonsingular matrix based substitution permutation network is designed.
基于这一模型，设计了一个称为基于全非奇异矩阵的代替置换网络的密码结构。
The upper bound of the differential probability is developed for the completely nonsingular matrix based substitution permutation network.
给出了基于全非奇异矩阵的代替置换网络的差分概率上界。
Therefore, using large completely nonsingular matrix based substitution permutation networks can effectively improve cipher security in relation to differential cryptanalysis.
指出了使用大规模的基于全奇异矩阵的代替置换网络可有效地提高分组密码抗差分密码分析的安全性。
This paper proposes a matrix based substitution permutation network as the model of block cipher.
论文提出了一种基于矩阵的代替置换网络模型。
The metasomatic process is mostly the substitution of anions in the crystal lattice of minerals making up the matrix of aquifers by anions from polluted groundwater to form new mineral facies.
前者主要是被污染地下水中阴离子替代组成含水层介质骨架的矿物晶格中阴离子，生成新的矿物相的过程。
Using the linear space in linear substitution, has given on the complex field the matrix one form, and gave this kind of decomposition form to ask the law specifically.
利用线性空间上的线性变换，给出了复数域上矩阵的一种形式，并给出了这种分解形式的具体求法。
The subdivision interpretation results by deconvolution are compared with those obtained by progressive substitution method, inverse matrix method and the commonly used average concentration method.
并将反褶积法的分层解释结果与逐次迭代法、逆矩阵法和平均含量法的解释结果作了对比。
You'd pull out your pencil and paper, you can do it as a matrix inversion if you know how to do that, or you can just simply do substitution of one equation into another to solve it.
你知道你在小学的时候是怎么做的对吧？，你拿出你的笔和纸，如果你会的话，你可以解一个方程组，或者你可以单纯地。
You'd pull out your pencil and paper, you can do it as a matrix inversion if you know how to do that, or you can just simply do substitution of one equation into another to solve it.
你知道你在小学的时候是怎么做的对吧？，你拿出你的笔和纸，如果你会的话，你可以解一个方程组，或者你可以单纯地。
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