Based on pulse counting principle, the high precision time interval can be obtained by measuring the number of the high-frequency reference clock through it.

设计了一种高精度时间间隔测量模块，该模块由单片机控制，采用脉冲计数原理，通过测量时间间隔内高频参考时钟个数，得到被测时间间隔的精确值。

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I wouldn't set an alarm, but if you find yourself looking at the clock, give yourself structured work time and structured play time in an interval format to get you through the day.

那就打破你的计划吧。 我不会设一个闹钟，但如果你发现自己会时不时看时间，给自己一个规划好的工作时间和玩乐时间，让自己熬过这一天吧。

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The time correction error of substation clock synchronization, the clock precision of automation equipment and the time correction interval are quantitatively analyzed.

定量分析了变电站时钟同步的校时误差、自动化装置时钟精度及基于两者的校时时间间隔确定等问题。

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