By isolating organisms completely from external periodic cues, biologists learned that organisms have internal clocks.
通过将生物体与外部的周期信号完全隔离，生物学家了解到生物体有内部的生物钟。
Their internal clocks start counting from then, so they can calculate the date and time in the future.
他们的内部时钟从那时开始运转，使得他们能够在之后计算日期和时间。
Kids who are struggling to get out of bed in the morning may need help resetting their internal clocks, he says.
他说，那些每天早上都赖床不起的孩子需要有人帮助他们重新设置他们的生物钟。
And because their internal clocks are sometimes set a bit early, some roosters begin crowing well before sunrise.
又因为公鸡的生理钟有时候设置得早一些，所以，一些公鸡打鸣在日出前。
Scientists have known for a long time that the light of day and the dark of night play important roles in setting our internal clocks.
科学家们很久以前就发现，昼夜光线的变化对于设置生物钟起着重要的作用。
Normally the two timers are in step, and the external cues tend to regularise the internal clocks to the more convenient 24 hour period.
一般情况下，这两种定时器是步调一致的。外部信号常常调节人体时钟命使之达到更为便利的24小时周期。
Establish a regular bedtime and rising time, and stick to them. A regular bedtime and rising time can help you stabilize your internal clocks.
定一个规律的作息时间，持之以恒，有规律的作息时间能帮助你哦内部生物钟。
If you're using the same trace system for all your components, you'll be left to tie together multiple outputs from systems with potentially unsynchronized internal clocks.
如果对所有组件使用相同的跟踪系统，您将被迫协调系统的多个输出，从而可能面临内部时钟不同步的风险。
And fatigue experts have weighed in to note that the evening hours when the incident occurred typically don't pose particular challenges for the internal body clocks of pilots.
疲劳问题研究专家也说，虽然晚间是事故多发时段，但对飞行员的生物钟并不构成特别的挑战。
The researchers say that electronic devices are lying dormant, running their clocks, maintaining internal memories or displaying their Settings.
研究者们说这种电子设备除了时钟、内部存储器在维持工作，以及需要显示设置的时候，别的都处于休眠状态。
The researchers say that electronic devices are lying dormant, running their clocks, maintaining internal memories or displaying their Settings.
研究者们说这种电子设备除了时钟、内部存储器在维持工作，以及需要显示设置的时候，别的都处于休眠状态。
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