The involute generativeprinciple and top gear hob is the same.
非渐开线展成滚刀 工作原理与齿轮滚刀相同。
2
This system that can be operated on a micro-computer is based on group technology and uses the semi-generativeprinciple to carry put the technology process design for shaft parts.
本系统以成组技术为基础,采用半创成式生成原理进行轴类零件的工艺过程设计。
3
The last part is principle of developing and using of student generative curriculum resources in history class.