... 稀少；稀疏 sparsity 稀少；珍异 scarceness 稀少的 exiguous; infrequent; rarefactional; scarce; slim; sparse ...
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centered rarefactional wave 有心稀疏波
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The least square problem of the convolution result and real seismic data can be considered as the solution of a huge rarefactional matrix equation, which can be solved by singular value decomposition.
然后将其与地震子波褶积，使其求解结果与实际地震数据的最小平方问题归结为求解一大型稀疏矩阵方程，并采用奇异位分解法求解。
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