摘要
随着现代制造业的飞速发展，数控机床的应用越来越广泛，大部分零件的加工采取用数控机床加工，简单零件的编程与加工采用手工编程，如果加工复杂零件，手工编程就相当烦锁了，所以应选用自动编程，既省时间，又非常方便，还不容易出错。
Abstract
With the rapid development of modern manufacturing,the application of nc machine tool is more and more widely, most of the parts processing to use nc machine tool processing,the simple components of the programming and processing using manual programming,if processing complex parts,manual programming is quite annoying lock,so should choose automatic programming,save time,and very convenient,is not easy to get wrong.
NETL
NSTL
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