为提高编程效率，数控系统一般都提供固定循环功能。
To improve the process programming efficiency of numerical control lathe, the system generally provides fixed repeating function.
使用宏程序可以极大地提高编程效率，并能扩展数控机床的使用范围。
It can improved programme efficiency with using macro program. And it can extended using scope of nc machine tool.
使用虚拟数据访问服务层支持SOA、促进代码重用、提高编程效率和促成更灵活的软件环境。
Support SOA, promote code reuse, enhance programming productivity, and contribute to a more flexible software environment with the virtual data access services layer.
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