In Tazhong Area, the main factor of impacting average velocity is the depth of stratum and lithology of igneous.

在塔中地区，影响平均速度的主要因素是地层埋深和火成岩的岩性。

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In Tazhong Area, the main factor of impacting average velocity is the depth of stratum and lithology of igneous.

在塔中地区，影响平均速度的主要因素是地层埋深和火成岩的岩性。

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