她对里兹十分关心，但她自己仍觉得不够，还想学到更多照顾青少年的方法。
She cared deeply about Lizzie but was still trying to figure out how to raise a teenager.
采用里兹法和切分拟合的数学方法，讨论了单向压缩和弯曲共同作用的薄板弹性屈曲问题。
This article adopted Ritz method and divide-fit mathematical method, solved the problem of elastic buckling of thin plate under compression and bend multiplicity action.
在短时窗中应用最小平方法提取子波，可以导出一种对称矩阵算法。它不同于常用的托布里兹矩阵算法。
For us to extract wavelet by least square method in short window can derive a symmetric matrix algorithm, which is different from the algorithm of commonly used Toeplitz matrix.
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