渐伸线（involute）(或称渐开线(evolent))和渐屈线（evolute）是曲线的微分几何上互为表里的概念。若曲线A是曲线B的渐伸线，曲线B是曲线A的渐屈线。在曲线上只有一条渐屈线。
渐开线齿廓（Involute tooth profile），即是以渐开线（Involute）作为齿廓曲线。渐开线（Involute）是由直线在圆上作纯滚动产生的。
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... 短副内摆线Curtate hypocycloid 渐开线Involute; Involute to a circle 延伸展开线Prolate involute ...
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渐开线齿轮 [机] involute gear ; Involute tooth gear ; involute curfe ; involute cylindrical gear
渐开线花键 [机] involute spline ; involute serration ; involute line
渐开线蜗杆 involute worm ; ZI ; [机] involute helicoid worm ; ZI-worm
渐开线函数 involute function
球面渐开线 [数] spherical involute
渐开线齿廓 Involute Tooth Profile
渐开线压力角 pressure angle of involute ; pre ureangleofinvolute ; of ateeth ; prescertain angle of involute
渐开线方程 involute equation
渐开线齿 Involute teeth ; involute tooth
The standard involute cylinder gear is studied in this paper.
本文以标准渐开线直齿圆柱齿轮作为研究对象。
参考来源 - 齿轮副的静、动态数值计算与动态光弹性实验研究The process and principle of involute spline is analyzed,the unit average pressure contacting area,rolling billet diameter,rolling force and moment are solved.
分析渐开线花键冷滚压精密成形工艺过程及原理,对成形过程的单位平均压力、接触面积、滚压坯料直径、滚压力及滚压力矩等进行求解。
参考来源 - 渐开线花键冷滚压精密成形工艺分析及试验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
本文以标准渐开线直齿圆柱齿轮作为研究对象。
The standard involute cylinder gear is studied in this paper.
内啮合齿轮泵有两种齿形即：渐开线齿形和摆线齿形。
Internal gear pump has two kinds of tooth profile namely: involute profile and cycloidal tooth profile.
根据渐开线球齿轮的仿形加工原理，设计一种具有渐开线齿廓的指状铣刀。
According to the principle of profiling machining of involute spherical gears, this paper designs the accurate involute profile curve of its finger milling-cutter.
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