An inversion of velocity structure of crust and upper mantle by using converted PS wave and multiwave PPP etc, is reported in this paper.

本文是研究利用天然地震PS转换波及PPP等二次波到时资料反演地壳上地幔速度结构的尝试。

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This paper reported the results of inversion esophagectomy without thoracotomy for 26 cases of upper esophageal cancer, 5 cases of cardiac cancer.

本文报告我院非开胸食管内翻拔脱术治疗食管上段癌26例。贲门癌5例的治疗结果，并对此术式治疗食管癌。

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Finally, the characteristics of shear velocity distribution in the crust and the upper mantle obtained by inversion has been discussed.

讨论了反演所得地壳与上地幔的横波速度分布特征。

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