1·Based on this method, a digital tachometer design for aero engine was introduced.
在这个基础上，介绍了一种航空发动机数字转速表设计。
2·I mainly produce braking unit, braking resistor, torque motor controller, inverter panel extension cables, tachometer, counters.
我部主要生产制动单元、制动电阻、力矩电机控制器、变频器面板延长电缆、转速表、计数器。
3·The AP1000 Series Digital Tachometer is a complete rate monitoring system that combines accuracy and reliability in a rugged, compact housing.
AP1000系列数字转速表是一款速度检测系统，精确度高，稳定性好，采用耐用、简洁的包装。