Some inner clocks seem to be set to a timingcycle of about twenty-four hours. These are called circadian rhythms.
一些生物钟似乎是按照24小时的周期设定的，这些现象叫做生理节律。
2
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。
3
Figure 4 illustrates how a single project with two practitioners would look during any one change cycle (timing to be established by local policy).