The light signals sent to your body's master clock tell you when to be sleepy and when to be alert.

传送到我们身体的主时钟的信号告诉我们什么时候该睡觉，什么时候又该打起精神。

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If you wake early and get outside, the body's master clock tends to shift earlier, says Mariana Figueiro, a scientist at Rensselaer Polytechnic Institute in Troy, n.y..

纽约州特洛伊·伦斯勒理工学院的科学家玛丽安娜·菲戈罗如是说，如果你早起到户外去，那么你身体的主时钟就会被拨快。

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This article lays its stress on the main testing methods of the precision of master clock and the relevant synchronous equipment.

论文着重介绍了主时钟以及相关同步设备精度的主要测试方法。

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With the signal from the master clock, the slave clock is able to recover an accurate local clock signal using a Clock Recovery Phase Locked Loop (PLL).

从时钟利用主时钟发来的时钟信号，通过数字锁相环恢复出本地时钟信号。

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With the signal from the master clock, the slave clock is able to recover an accurate local clock signal using a Clock Recovery Phase Locked Loop (PLL).

从时钟利用主时钟发来的时钟信号，通过数字锁相环恢复出本地时钟信号。

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