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极限角
limiting angle
- 2 2反射，折射，司涅尔定律，极限角，全反射角，反射与穿透的交互作用。
Reflection, refraction, Snell's law, critical angle, Brewster's angle, reflection and transmission coeffs. - 极限压力角受偏置角、大小轮的螺旋角、节锥角和中点的分度圆直径影响,而与齿面的其他参数无关等结论.
The limit pressure angle is related to such factors as offset angle, mean spiral angle, pitch cone angle and mean pitch cone diameter, not to geometrical shape of the tooth surface. - 方法对上述5种临床常用正畸钢丝的弹性模量、性极限、弹角、拉强度、转强度、劳强度等机械性能进行测试和比较。
Methods The specimens of the five wires were tested and compared for their elastic modulus, elastic limit, tensile strength , reverting angle, torsional strength and f atigue strength .
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