Round chamfering was done for walls and railings necessary for safety reasons and also for the edge of light and skylight in every part of the building using it as a motif of design.
墙与围栏等细节处的圆形倒角一方面是出于安全的考虑，另一方面出于对光的利用，让天光或室内光柔和照射到建筑各角落。
Introduction the chamfering performed to deburr the edge of a workpiece after the machining process is necessary to obtain workpieces with a certain quality.
工件在完成加工后，为保证工件的质量，用斜面清除工件边角的毛刺很很有必要的。
Aimed at a kind of rotary cutting machine, the machining process of involute gear chamfering is kinematically analyzed, and the moving locus equations of cutting edge are deduced.
针对一种目前国内研究较少的回转切削机床，分析了对渐开线齿轮进行倒角加工时的运动情况，得出了该机床在进行倒角加工时刀具切削刃的轨迹方程。
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