The resumption of thread cutting of using G38+ function which provided by NUM numeral control system was firstly carry out in our country.
在国内首次使用NUM数控系统提供的G38+功能，实现螺纹重复切削。
This paper developed and studied the Product Design Process Management System for Jiangsu Douleng Numeral Control Machine Joint-Stock Limited Corporation.
本文对江苏多棱数控机床股份有限公司的产品设计过程管理系统进行了开发和研究。
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