The problem with this type of gear is that the distance from the center of each gear to the point of contact changes as the gears rotate.
这种齿轮传动的缺陷在于，每隔齿轮的中心到啮合点的距离在运转的过程中是变化的。
Taking radiotherapy of tumor stem cells as a contact point, strategy designed by radiobiology can essentially solve this problem.
将肿瘤干细胞作为放射治疗的切入点，针对其放射生物学行为制订对策，才能从根本上解决问题。
This paper studies the relief grinding problem of the hob of point contact worm gear drive and puts forward a one-parameter enveloping method to calculate the axial profile of relief grinding wheel.
本文研究了加工经可控曲率修正的蜗轮齿面的滚刀设计问题，建立了相应的数学模型，并应用计算铲磨蜗轮滚刀刃形曲线的单参数包络法，求出铲磨砂轮截形曲线。
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