The meteorological representative error is the main source of EDM error, as well as the main obstruct to realize the nominal accuracy of the precision electronic tachometer also.
气象代表性误差是光电测距的主要误差来源，也是实现精密全站仪标称精度的主要障碍之一。
Motor has thermo-elements to monitor temperature, electronic tachometer and high pressure oil jacking device when needed. The excitation device currently uses micro- computer control device.
电机带有测温元件以监控温度，还带有电子测速装置、需要时可带高压油顶起装置。
Motor has thermo-elements to monitor temperature, electronic tachometer and high pressure oil jacking device when needed. The excitation device currently uses micro- computer control device.
电机带有测温元件以监控温度，还带有电子测速装置、需要时可带高压油顶起装置。
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