但由于边界元法得到的求解代数方程组的系数矩阵是满阵，对其解题规模有很大的制约作用。
But the scale of the problem that can be solved by BEM is greatly limited, because the matrix of the system equations generated by BEM is fully populated and unsymmetrical.
街道上满是聚集的人群，传出一阵无声的哭泣。
A voiceless cry emanated from the crowd gathering on the street.
美丽的女孩依然一声不吭，眼里满是泪水，脸上一阵儿红，一阵儿白。
The beautiful girl remained silent, but there were tears in her eyes, and her face was white and red after each other.
本文对降秩多元线性模型的参数阵提出了一类有偏线性估计，讨论了许多重要的性质，从而把降秩模型中参数阵的估计问题转化为满秩模型中参数阵的估计问题。
In this paper we define a class of biased linear estimators for the parameter matrix in the multivariate linear model with deficient rank and discuss some important properties.
每当他想起他儿子和他女儿出生的那一刻，他就忍不住一阵兴奋，他那满是皱纹的苍白的脸，也会因此红晕片刻。
Whenever he thought of the moment when his son or his daughter born, he would always be so excited that even his pale, wrinkle cheer became red for a little while.
每当他想起他儿子和他女儿出生的那一刻，他就忍不住一阵兴奋，他那满是皱纹的苍白的脸，也会因此红晕片刻。
Whenever he thought of the moment when his son or his daughter born, he would always be so excited that even his pale, wrinkle cheer became red for a little while.
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