求翻译：摘 要：简单的槽零件在数控车削系统中，编程是简单的，只要G01指令就可以。但是遇到深槽和宽槽，编程就会复杂一些。在FANUC系统数控车床中，通常人们会选用G75循环指令。但是在华中世纪星HNC-21T数控系统中，却没有类似于G75的指令。利用宏指令与G81指令结合可很好的解决这个问题。由于宏程序中使用了各种变量、运算指令和控制指令,大大的简化了程序,而且可以通过设置不同的变量,实现对简单立体型面的手工编程加工,并通过改变参数，槽类零件加工所达到的要求。是什么意思？

Abstract: A simple tank parts in CNC turning systems, programming is simple, as long as the G01 command can be. But the encounter deep grooves and wide groove, programming will be more complex. FANUC CNC lathes in the system, usually people will use G75 cycle instruction. But in the central Century

Summary: Simple tank parts in CNC turning systems, programming is simple, as long as G directive 01. But faced with deep groove and wide trough, programming will be complicated. CNC lathe in FANUC system, usually people will choose 75 G instruction cycle. But in China - 21 medieval star HNC T numeri

Abstract: simple tank parts CNC turning system, programming is