直廓滚刀无法精确铲磨。
该系统可优化滚刀设计参数，自动校核齿背铲磨，实现齿轮刀具快速可靠的设计。
This system can optimize the parameter of gears, check relief grinding of tooth back automatically and design the gear hobs rapidly and reliably.
结果表明：在直槽或螺旋槽、零前角或正前角等情况下，用本文设计的磨轮铲磨的滚刀，其基本蜗杆轴截形在从新到旧的整个使用过程中都是精确的。
The following conclusion is obtained. In the cases of straight gash, spiral gash, zero rake angle and positive rake angle, the hob worm profile from hob put into use to hob abandoned i…
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。
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.
以色列人要磨锄，犁，斧，铲，就下到非利士人那里去磨。
So all Israel went down to the Philistines to have their plowshares, mattocks, axes and sickles sharpened.
在检测分析进口抗磨件基础上，采用空冷贝氏体铸钢制造了D9L推土机铲刃、铲角。
Based on the inspection and analysis to the imported wear resisting components, the cutting blade and end bit of model D9L bulldozer were made using air cooled cast steel.
以色列人要磨锄、犁、斧、铲，就下到非利士人那里去么。
But all the Israelites went down to the Philistines, to sharpen every man his share, and his coulter, and his axe, and his mattock.
以色列人要磨锄、犁、斧、铲，就下到非利士人那里去么。
But all the Israelites went down to the Philistines, to sharpen every man his share, and his coulter, and his axe, and his mattock.
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