The machine for the Four-column press, using optimized hydraulic drive program, with a strong driving force, accurate positioning and a perfect combination of actions.
本机为四柱式压力机，采用优化的液压传动方案，具有强大的动力，精确的定位和完美的动作组合。
2
This dissertation gave a solution to improving positioning accuracy of rotary table by using a piezoelectric ceramic drive.
同样的，本文设计了一套方案，利用了压电陶瓷驱动器来提高回转定位精度。
3
In this system, linear motor is applied, and under the control of computer, fast response of servo drive for tool feed, high positioning accuracy and high precision workpiece are achieved.