这是一个非常，非常古老的时钟，但它仍然保持很好的时间。

It is a very, very old clock, but it still keeps good time. Mr.

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流水线ADC的模块有采样保持电路、乘法数模转换器、子ADC、数字校正电路、时钟产生电路和时间对齐电路。

The whole circuit consists of Sample and Hold Circuit, the Multiplicative A/D Converter, the Sub-ADC, the Digital Calibration Circuit, the Clock Generator and the Time Synchronizer.

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轮班工作是造成想睡的主要原因，因为他们必须在违背“生理时钟”的时间保持清醒。

Shift work is an major cause of sleepiness as it requires workers to be awake at times which are different to those dictated by their 'body clock'.

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