In order to meet the requirements for the position of hub hole, the paper introduces the structure principle, operation process and characteristics of simple drilling jig used in the beam drill.
为了满足轮毂孔的位置要求，介绍了在摇臂钻床上使用的简易钻模的结构原理、操作过程和特点。
In order to meet the requirements for the position of hub hole, the paper introduces the structure principle, operation process and characteristics of simple drilling jig used in the beam drill.
为了满足轮毂孔的位置要求，介绍了在摇臂钻床上使用的简易钻模的结构原理、操作过程和特点。
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