最高的一层，开着一扇窗，屋里温暖的气息飘出窗口，一个身影纤柔的女子正两手托腮，靠着窗台上。
The highest level opens a window. Warmth floats out of the window. A delicate lady leans against the window sill, holding her chin in her hands.
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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