我国正处于工业经济向知识经济时代过渡的特殊时期。进一步提高劳动者素质，大力培养新型技能人才，是职业教育工作者共同肩负的光荣任务。当今，计算机技术、电子技术的迅速发展和应用，使得机械制造的设备和工艺亦随之发生了深刻变化，普通机械逐渐被高效率、高精度的数控机 Our country is in a special period of transition from industrial economy to knowledge economy. To further improve the quality of workers, vigorously cultivate new skilled personnel, is the glorious task of vocational education workers shoulder the same task. Today, the rapid development and application of computer technology and electronic technology have led to profound changes in the equipment and processes of machinery manufacturing. Ordinary machines are gradually being replaced by high-efficiency and high-precision CNC machines