The preconditioned fastest descent means in inversion achieves simultaneous in - versions of overlying-bed velocity and refractor depth.
反演过程中利用具先决的最速下降法，可解决覆盖层速度和折射界面深度同时反演问题。
The preconditioned fastest descent means in inversion achieves simultaneous in - versions of overlying-bed velocity and refractor depth.
反演过程中利用具先决的最速下降法，可解决覆盖层速度和折射界面深度同时反演问题。
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