Consequently, the timing and rhythms of biological functions must closely match periodic events like the solar day, the tides, the lunar cycle, and the seasons.

因此，生物功能的时间和节奏必须与太阳日、潮汐、月球周期和季节等周期性事件密切契合。

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Their sleep/wake cycle lengthened suggesting the brain mechanism that controls the timing of activity and rest had been affected.

它们的作息周期变长，表明控制作息时间的大脑机能受到影响。

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We also believe there have been shifts in the factional balance of power that could have implications for the timing of the transition to the short cycle.

我们还认为，派系之间的权力平衡会对向短周期过度的节奏产生影响。

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At the same time, however, it is almost impossible to contemplate large projects without debt, nor to smooth over the minor ups and downs of the economic cycle and the timing differences between tax receipts and spending demands.

FORBES: How Debt Limits A Country's Options

Another argument for the stock is the timing of the housing cycle.

FORBES: Anxiety On The Home Front

That paper also found that male sweat may affect the length and timing of a woman's menstrual cycle.

CNN: Sweat may give off stress signals, study says