The velocity difference between the two layers of the lower crust is not obvious 下地壳的两构造层速度差异不明显。
Average weathering velocity 平均风化层速度
New method of using seismic velocity to predict layer drillability and drilling rate 利用地震层速度预测地层可钻性和钻速的新方法
According to the theory of generalized inversion , we can get the parameters of velocity and thickness in each layer with joint inversion of multilayer reflection wave ' s travel time 摘要从广义反演理论出发,对多层反射波的走时联合反演,可以同时获得所有的各层速度及厚度参数。