Taking national conditions into consideration,seven development tendencies of the numerical control system are summed up.

结合我国国情，总结了数控系统的七大发展趋势。

In recent years, numerical control machine has got important status and predomination in manufacturing of China.

近几年来我国制造业中,数控机床的占有率不断提高,在生产中已经占有重要地位。

The paper introduces the design of the double-functional X-ray bone densometer,first-developed in China using microcomputer control technology and numerical control technology.

介绍了采用微机控制技术、数控技术等先进控制技术进行的我国首台双功能X射线骨密度仪自动控制系统的设计。