Metbods: a two dimensional finite element model was built up to analyse the stress within the periodontal tissue of the first molar, with a reduced tooth eruption-resistant force.
方法：用二维有限元法分析阻萌力减少前后下第一磨牙牙周组织内应力分布的变化。
A two-dimensional axisymmetric finite element model of sampling tube and sediments is built.
建立了取样管与沉积物接触的二维轴对称有限元模型。
Objeclive:To establish a two dimensional finite element analysis model for hard tissue morphology on lateral cephalometric X ray film.
目的：建立X线头颅侧位定位片硬组织形态二维有限元分析模型。
A two-direction shear deformation finite element model is presented in which a three-dimensional problem is reduced to a two-dimensional one and thus the calculation is much simplified.
文中提出了“双向剪切变形”有限元模型，使三维问题简化为二维问题，计算工作量大为减少。
Then the two-dimensional finite element model of HEDS machine has been builded and the basic characteristics of HEDS machine has been analyzed.
建立了所设计电机的二维有限元模型，在此基础上分析了电机的基本特性。
Then the two-dimensional finite element model of HEDS machine has been builded and the basic characteristics of HEDS machine has been analyzed.
建立了所设计电机的二维有限元模型，在此基础上分析了电机的基本特性。
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