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根据实践经验对轴类定位用的中心孔加以改进,用线接触中心孔代替面接触中心孔,提高轴的加工精度,且制造方法简单易行。
Based on practical experience, the center hole for positioning the shaft is improved. The contact center hole is used instead of the center contact hole to improve the machining precision of the shaft, and the manufacturing method is simple and easy.