学科筛选

  • 12. A study of the drilling process

  • 【来源】

    [学位论文] - 1970

  • 【作者】

    Cheng, C. Y. 
  • 【摘要】

    The modern two flute twist drill has been in existence for more than fifty years and the drilling process has become one of the most widely used manufacturing operation. There has hardly been any majo...

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