矩阵扩充问题是当给定一个或多个子矩阵，在某种约束条件下构造矩阵的问题。
The problem of matrix extension is to construct matrices with a given matrix or a several given matrices as its sub-matrices under some constrained conditions.
矩阵扩充问题是在某种约束条件下构造矩阵A，使得矩阵A的一个子矩阵为A_0。
The matrix extension problem is, under some constrained conditions, constructing a matrix A with a given matrix A_0 as its submatrix.
增广向量法通过扩充输入、状态、输出等向量的维数及系统系数矩阵维数构造增广系统，使复杂问题简单化。
An augmenting system is designed to extend dimension of input, state, output and the coefficient matrixes in the method of augmenting vectors in order to predigest complicated problem.
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