该控制方程是线性区间方程组。

These equations are interval linear equations.

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将结构系统中的不确定性参数用区间数来表示，用有限元法建立静力区间线性方程组。

By representing the uncertain parameters as interval Numbers, the static governed equations of the structural system are obtained in this paper by means of the finite element method.

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当区间线性方程组的系数矩阵a为区间H阵时，证明了BIMV算法的可行性与收敛性。

The feasibility and convergence of the BIMV method are proved when the coefficient matrix a of interval linear equations is an interval H-matrix.

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