In general drilling, axes decline and diameter enlarged of the hole are the main problems to affect the precision of machine tooling.
麻花钻普通钻削中，孔轴线的偏斜和孔径的扩大是影响其加工精度的主要问题。
In general drilling, axes decline and diameter enlarged of the hole are the main problems to affect the precision of machine tooling.
麻花钻普通钻削中，孔轴线的偏斜和孔径的扩大是影响其加工精度的主要问题。
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