conic

From Analysing limitation of knurling cutting tool used in general lathe, The paper states function structure , technique parameters and foreground application possibility about new conical, functional knurling cutting.

通过对滚压刀具在普通车床是的应用局限性分析,阐述了新研制的圆锥型多功能滚压刀具的功能结构、工艺参数和应用前景分析。

In order to improve the spray coverage in canopy,to reduce the loss of pesticide out of the tree,and reduce the effect of pesticde spray on the environment,the target-detecting spray experiments were conducted for two hollow cone nozzles horzontalled to study the effcets of the spray pressure and the travel speed on the solution distribution.

为实现果树农药精确喷雾,减小农药在果树以外的沉积损失,降低果树农药喷雾对环境的影响,采用喷雾试验台对果树对靶喷雾中水平安放的空圆锥型喷嘴的喷雾药液沉积分布进行试验研究。