在钻孔加工过程中，存在许多影响孔的精度的因素。
In the course of drilling, there are many facts effecting hole's accuracy.
它可广泛应用于家庭、小作坊等场所的钻孔加工中。
The utility model can be widely used for the drilling process in places of the family, the small mill and the like.
简要介绍数控钻孔加工过程中，钻头的受力情况和对应钻孔程序的编制技巧。
This article briefly introduces the drill bit condition effected during drilling process and the program - Ming technique to drilling data.
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