Grinding head on, sliding imports of dual-use system linear guide, two-ball screw drive, to achieve the smooth running speed to eliminate mobile space (displacement).
磨头座、滑动系统采用进口的双直线导轨、双滚珠丝杆传动，以达到运行速度平稳、消除移动间隙(位移)。
2
A scheme Of optical fiber displacement sensor with renective dual F-P interferometers is presented. In this scheme a LED is used as light source.
提出了一种反射式双F-P干涉仪光纤位移传感器方案，在这个方案中采用LED作为光源。
3
A dual relationship between stress tensor and displacement grads tensor is presented.