Maintain, repair and calibrate precision measuring instruments such as dial indicators, fixed gauges, height gauges and other measuring devices.
维护，修理和校准千分表，固定计，高度计和其他测量设备等精密测量仪器。
This study puts forward an auto-detecting method of detecting the precision of dial gauges based on traveling wave ultrasonic motor and FPGA.
研制了基于行波超声波电机与步进电机驱动的机器人多自由度机械臂精密定位控制系统。
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