(齿轮的)齿根圆
Quantitative evaluation of residual endodontic microorganisms after mechanical root canal preparation different chemical preparations by real-time PCR The Method and Instrument of Measuring Addendum Circle and Dedendum Circle Diameter
感染根管机械预备联合不同化学方法预备后细菌残余量的实时定量检测齿顶圆与齿根圆直径的测量及其量具
Two formulas of compound shaper cutter are ob-tained. They are used to calculate the pitch pressure angle of chamfer involute and radius of circle on which chamfer involute starting point lies, and to check the tooth root slot width.
得到了复合插齿刀倒角渐开线分度圆压力角,倒角渐开线起始点所在圆半径的设计公式及插齿刀齿根槽宽的验算公式;
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