给出反弯校直过程中的力参数、工艺参数和结构参数的计算方法。
The computation method for the parameters of mechanics, technology and structure in op bending straightening are derived.
仰卧的后弯体式：例如桥式，轮式，反台式，这些后弯的程度会更深，并且比俯卧的后弯带来更多强烈的感受。
Supine backbends: such as bridge pose, upward-facing bow, viparita dandasana are deeper back bends and create more intense sensations and experience than prone backbends.
采用轴对称动力有限元结合系统识别反分析理论进行路面模量反算，考虑了落锤式弯沉仪（FWD）荷载作用下的路面反应动力效应。
This essay adopts limited units of axial symmetry and theory of system recognizing backcalculation, in which the dynamic effect of the road surface reaction to load of FWD is considered.
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