Organism has an "internal time clock" which signals various changes in glandular secretions, but.

在腺状体分泌物中代表各种各样的变化的“内时钟”。

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Brains were thought to measure time by using some kind of internal clock that generates events at a relatively regular rate.

据认为，用大脑里所谓的内置时钟——用相对规范的速率来衡量事物——计算时间。

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Sticking to a regular bedtime and wake time schedule helps keep you in sync with your body's circadian clock, a 24-hour internal rhythm affected by sunlight.

坚持按时睡觉和起床能帮助你保持和自己的生物钟同步，生物钟是受阳光影响的24小时的内在节奏。

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By comparing the GPS and eLoran time signals with its internal clock, each probe can detect interference and determine whether it is natural or man-made.

ECONOMIST: GPS jamming

The little creature's also got four additional touch sensors, a temperature sensor, a gravity sensor and an internal clock to tell the time of day, improved motors, and basic voice recognition -- and the Hong Kong packaging suggests the dinos will even come in two different sexes.

ENGADGET: Pleo Reborn detailed by Innvo CEO, one lucky fan finds and buys the tiny dino (video)

Complete with an internal clock, Amanda always knows the date and time--not to mention special holidays like Mother's Day, of course.

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