calibrating table for tachometer
calibrating set for resistance attenuator 电阻衰减器校正装置 calibrating table for tachometer 转速表校验器 calibration condenser 校准电容器 ..
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针对“便携式汽车仪表总成校验箱”系统的开发需要，设计了一种用于汽车电子转速表、里程表校验的频率信号发生器，论述了电路的设计原理和设计思想。
Due to need for the development of portable motor meter assembly checking box, a kind of frequency signal generator is designed, detailed design principle and idea are discussed.
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