二维复杂层状介质地震折射波正演方法，该方法可适用于折射面起伏不大、低速层和折射层速度变化不大的情况。
Forward modeling method of refraction first-break in lateral varying velocity media. For layered media, a new forward modeling method of refraction is presented.
对于层状介质，用折射波可反演出层速度、曲界面的形状和深度，实现二维层速度成像。
Interval velocity as well as shape and depth of a curved interface in layered medium can be inversely derived lay using re - fraction waves to achieve tomography of two dimensional interval velocity.
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