An experimental unit for measuring instantaneous speed of high speed train passing through tunnel with a photoelectrical switch is designed.
设计了一套采用光电开关测量高速列车进出隧道瞬时速度的实验装置。
Also it analysed the cause of the faults of the electronic displaying ruler in sound speed measuring unit.
对于声速测定仪中电子数显尺的常见故障原因进行了分析，并总结出维修方法。
As the drilling style, this system introduces fly drilling technology whose central device is exact speed measuring unit to achieve dynamic-drilling on-line.
制孔方式方面采用以精密测速单元为核心的位移跟随技术，实现在线动态制孔。
The measuring data of generator rotor obtained from varying speed experiment of the hydro-generating unit is analyzed.
通过水轮发电机组的变速试验对发电机转子测试数据进行分析。
Through monitoring and measuring of drilling indices of marble and primary ore body of Daye Iron Mine, a rational relationship between unit energy consumption and drilling speed is established.
对大冶铁矿大理岩和原生矿体的钻孔指标进行监测，建立合理单耗与钻进速度关系式。
Through monitoring and measuring of drilling indices of marble and primary ore body of Daye Iron Mine, a rational relationship between unit energy consumption and drilling speed is established.
对大冶铁矿大理岩和原生矿体的钻孔指标进行监测，建立合理单耗与钻进速度关系式。
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