• 这其中有些标准设定必须保留测试结果时间长度

    Some of these standards have a set amount of time that you must retain test results.

    youdao

  • 系统采用8031单片机进行控制,根据控制命令发出不同时间间隔、不同时间长度、不同频率标准正弦波信号。

    The system is controlled by chip microprocessor 8031 and can transmit standard sinusoidal waves with various frequencies and arbitrary time intervals according to various requirements.

    youdao

  • 系统采用8031单片机进行控制,根据控制命令发出不同时间间隔、不同时间长度、不同频率标准正弦波信号。

    The system is controlled by chip microprocessor 8031 and can transmit standard sinusoidal waves with various frequencies and arbitrary time intervals according to various requirements.

    youdao

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