利用变换和摄动法将非线性位移方程线性化，得到了近似边值问题。
By using the transformation and the perturbation method, the nonlinear displacement equations are linearized, and the approximate boundary value problems are obtained.
建立了全断面岩石掘进机盘形滚刀刃上一点的位移方程，并探讨了其应用。
The displacement equation of a point on the disk cutter of a full-section rock tunneler has been created and its apPlication is investigated.
通过对构件转角-位移方程的修正，推导了半刚接梁单元线刚度修正系数。
Through revising the equation of rotation-displacement, the revised factor of the line rigidity of beam with semi-rigid connections is derived.
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