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科学事业的发展要求研制出日益提高的测角仪器,刻制精度零点几角秒的测角元件(度盘、光栅盘、码盘),要求有主轴晃动为百分之几微米的高精度刻划机器。高精度的测角仪和刻划机要求有高精度的主轴,而高精度主轴加工制造最关键的工序是磨削与研磨,这样的磨削与研磨属于
The development of science requires the development of increasingly sophisticated goniometry instruments and the need to create angular units (dials, lenticular discs, code discs) with an accuracy of a few tenths of a second, requiring a high precision of a few tenths of a millimeter of spindle oscillation Draw a machine. High-precision goniometer and scoring machine requires a high-precision spindle, and high-precision spindle machining the most critical process is grinding and grinding, such grinding and grinding belong to