循环指令 meaning in English

loop instruction
recursion instruction
recurssion instruction
rotate instruction

Software pipelining ( swp ) is an effective technique for loop optimization
软件流水是开发循环指令级并行的重要编译技术。
According to their connection mode , the first motion code is modified . furthermore , the other g codes of milling machine is studied in this paper , most of them have been appended into this system . including cannon cycle ,
此外,本课题中对铣床其它nc代码也进行了研究,将绝大部分铣床nc代码添加到了系统中,主要包括固定循环指令、平面选择、坐标系选择、旋转、缩放、镜像、子程序调用等。