当发生接触时，表面通常通过接触面传播剪力和法向力。
When surfaces are in contact they usually transmit shear as well as normal forces across their interface.
依据所建立的非线性模型，获得垂直入射纵波在非线性法向变形节理处传播的透射和反射系数的解析解。
Based on the established model, the analytic resolution of transmitted and reflected coefficients is obtained when the normal incident P-wave propagates to the nonlinear normal deformative joint.
直到不久前，圣多纳释放法只是通过私人授课向少数人传播。
Until recently, The Release Technique was only available to a small number of people through private classes.
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