太阳周期 solar cycle ; [天] solar period
太阳黑子周期 sunspot cycle
太阳活动周期 solar cycle ; solar activity cycle
或称为太阳磁活动周期 solar magnetic activity cycle
太阳黑子双周期 double sunspot cycle
所以叫做太阳的大周期 The Great Sidereal Year
太阳周期表 List of solar cycles
太阳[活动]周期 solar cycle
如果太用力了，胡克定律就不成立了-，你会让它永远毁坏-，当然，周期会成为，张力的函数，这里也是一样的。
If you go too far, that Hooke's — Law no longer holds — — that you deform it permanently — then, of course, the period will become a function of the extension, and the same is true here.
美国面临两个的挑战。一个是周期性的问题：经济运行缺乏潜在增长力，另一个是结构性问题：太依赖消费以及财政支持。
America has both a cyclical challenge-the economy is operating far below potential-and a structural one: it depends too much on consumption and fiscal support.
你还可以下载有助于睡眠的音乐，这些音乐会使你的大脑进入到正确的周期当中，有助于获得高质量的睡眠，这真的太神奇了。
You get downloads of sleep tracks that put your brain into the correct cycles for quality sleep. It works miracles.
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