定时器服务将定时器设置为指定的时间戳。

The timer service sets the timer to the specified timestamp.

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选择Time - delayed test selection，并将定时器设置为5秒。

Select Time-delayed test selection, and set the timer to 5 seconds.

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该系统中不但采用了奇校验和CRC校验，还利用定时器设置了超时报警机制，提高了通信系统抗干扰的能力。

To improve the ability of suppressing interference, the communication does not only make use of odd parity and CRC parity, but also apply to the overtime alarm mechanism.

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