The adoption of the tool in the structure for working inner sphere is easy in manufacture, working as well as radius adjustment, and high in working accuracy.
采用此种结构的刀具加工内球面，易于制做、加工半径易于调整、加工精度高。
To adopt boring technology to process hole alike ellipse sphere in the harder material and to explore devising method of cutting tool.
采用镗削加工工艺加工硬度较高材料的椭球孔，并探讨刀具设计方法。
To adopt boring technology to process hole alike ellipse sphere in the harder material and to explore devising method of cutting tool.
采用镗削加工工艺加工硬度较高材料的椭球孔，并探讨刀具设计方法。
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