求翻译：数字时钟采用数字电路实现时、分、秒数字的显示计时装置，由于数字集成电路的发展和石英晶体振荡器的使用，数字钟的精度和稳定性大大提高，因此得到了广泛的使用。数字时钟在原理上讲是一种典型的数字电路，其中包括了组合逻辑电路和时序电路。数字钟可用小规模集成电路制作。本设计采用的是十六进制计数器74LS161和十进制计数器74SL160，根据时分秒各个部分的的不同功能，设计成不同进制。秒的个位，需要10进制计数器，十位需6进制计数器（计数到59时清零并进位）。秒部分设计与分钟的设计完全相同；时部分的设计为当时钟计数到24时，使计数器的小时部分清零，从而实现整体循环计时的功能。是什么意思？

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Digital clock with digital circuitry for hours, minutes, seconds, the display timing devices because of the digital integrated circuit development and use of a quartz crystal oscillator, the digital clock has greatly improved accuracy and stability, and therefore to be a wide range of use. Digital c

The digital clock uses the digital circuit realizes when, divides, the second digital demonstration time installment, as a result of the digital integrated circuit development and the quartz crystal oscillator use, the digital clock precision and the stability enhances greatly, therefore obtained th

Digital clock with digital circuits timing device digital display hours, minutes, and seconds, due to the development and uses of quartz crystal oscillator for digital integrated circuits, digital clock precision and stability greatly improved, it has been widely used. Digital clock on the principle

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