The completion of automatic cycling of cutting operations on engine lathe or turret lathe by means of limit catches and electrical elements has often been refered as simple programming control.

• 利用行程挡块和电气元件控制普通车床或六角车床,实现刀架自动循环的简易程序控制,在上海的工厂、学校和科学研究单位中,已经进行了将近五年的试验。