成形铲齿,成形齿;
The equation inferential reasoning provides the theory basis for the awl tooth transition surface, the tooth root face, cut the equation of a curve and the geometry restraint equation inferential reasoning, they are essential to formed the overall awl tooth full-scale mockup.
该方程的推导为锥齿过渡面、齿根面、切曲线方程和几何约束方程的推导提供了理论依据,它们对形成整体锥齿实体模型是不可缺少的。
Most of the third molar embryo had been formed and their tooth crowns had been calcified, the occurrence ratio was 84 0% in maxilla and 85 2% in mandible.
上下颌第三磨牙牙胚绝大多数已形成且牙冠已钙化完成,其出现率为上颌840%,下颌852%;
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