The results show that the crust and upper mantle structures present obvious lateral and vertical inhomogeneity.
结果表明，地壳上地幔结构在纵向和横向上具有明显的不均匀性。
Study to the relation between strong earthquakes and S-wave velocity structures in the crust and upper mantle in the studied area.
内地壳和上地幔S波速度结构与强震的关系和强震活动的深部背景进行了探讨。
The difference of arrival times between such PS and pp waves can be used to determine the structures in the earth's crust and upper mantle.
这类PS转换波与初至P波之间的到时差，可用来测定地壳和上地幔构造。
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