ObjectiveTo observe the effects of the two kinds of rigid fixed bridge design on the stress of the alveolar bone of mandibular first molar after hemisection.
目的观察下颌第一磨牙半切术后两种双端固定桥修复对牙槽骨应力分布的影响。
Frame is sectional steel design with two lateral safety grids. Supporting angles are fixed on bush roller chains.
采用型钢焊接的框架结构，两侧有安全护网，带支撑挂耳固定在链条上。
The design of the shell with two bearings which were fixed hinge bearing and flexible hinge bearing was introduced. The process of the stability analysis and the eigenvalue analysis were given.
为了保证设计安全，分析时采用弹性支座和固定铰支座形式，分别进行了特征值以及整体稳定分析。
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