局部刚性约束如顶板、柱子等将增大墙体的应力。
Partial rigid restraint like top slab and column will increase the wall's stress.
且当行车快速水平移动时与吊具保持刚性约束，避免 吊具发生自由摆动。
The traveling crane maintains rigidity restriction with the lifting appliance in rapid horizontal shift, thus avoiding free swing of the lifting appliance.
最后，以一类刚性约束的非线性动力系统为例，揭示了局部映射在其动力学分析中的重要作用。
Finally, an important role of local map is shown in the dynamical analysis of a given nonlinear dynamical system with rigid constraints.
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