这种震动以前被诟病为60年周期性日长变化的原因，但该研究发现的自转速度表明，它并不是罪魁祸首，英国利兹大学的乔恩芒德说。
The twisting had previously been blamed for a 60-year cycle in day length, but the rate of rotation found in this study suggests it is not the culprit, says Jon Mound at the University of Leeds, UK.
据估计增长率可达6.1 %，原因是2001-02年增速放缓以来已出现强劲周期性回升以及各地区普遍呈现增长强势。
Growth is estimated to be 6.1 percent, due to a strong cyclical global rebound from the 2001-02 slowdown and a solid performance spanning all regions.
其中有自然原因：2006年以来，加州一直处于一个周期性干旱中，而气候变化是对州内山区积雪的长期威胁。
Some of the reasons are natural; California has been in one of its periodic droughts since 2006, and climate change is a long-term threat to the state's mountain snowpacks.
拉尼娜每隔3到6年发生一次，太平洋热带地区海水温度会随之发生周期性的异常变冷。
La Nina is a natural 3-6-year cycle, and the cold stretch of a periodic thermal oscillation in ocean surface temperatures that occurs throughout the tropical Pacific.
收入的改变，工作的改变和家庭费用的改变反映了这种周期性变化，而其它指标，如作为可支配收入部分的个人存款，数十年来已经逐渐减少了。
Changes in incomes, jobs and home prices reflect this cyclical behavior, while other indicators, like personal savings as a percentage of disposable income, have shown a gradual decline over decades.
如果这颗恒星年复一年的周期性明暗交替，那么形成足球状壳层多亏环绕它的“拍档”帮助就很有可能正确。
If the star seems to periodically dim and brighten over the year, it's likely that a big orbiting companion helped form the soccer ball-like seams.
即便考虑到其众所周知的周期性因素，投行业在过去五年里仍经历令人反胃的颠簸旅程。
EVEN by its own notoriously cyclical standards, investment banking has been on a stomach-churning ride in the past five years.
但2007-08年的世界粮食危机显示粮价并非受单一因素或主要受周期性因素影响。
But the world food crisis of 2007-08 showed that food prices are not influenced solely, or even mainly, by cyclical factors.
简言之，相对的和平稳定与战争动乱，呈周期性波动，是这个500年期间一个全球性的现象，这似乎与气温变动周期相关联。
In short, synchronous periods of relative peace and turbulence during those 500 years were a global phenomenon seemingly linked to temperature change.
股市强势上升——甚至升个3到4年的周期性牛市——在长期大熊趋势中也是可能的。
Strong market rallies — even three - to four-year cyclical bull markets — can take place inside a longer bear market trend.
这一研究将能说明过去几十年间，飓风所表现出的模式转换(shifting pattern)是周期性的，随机性的，还是因全球温室效应所造成的影响。
That would help to show whether the shifting pattern of hurricanes seen in the past few decades is cyclical, random or part of a trend that might be caused by global warming.
由于在二十世纪八十年代和九十年代的后半期油价下落，钢铁生产商通过向拉丁美洲增加采购量来应对澳大利亚人周期性的铁矿石涨价要求。
As the oil price fell in the second half of the 1980s and 1990s, steelmakers were able to react to periodic Australian demands for higher ore prices by shifting volumes to Latin America.
Vix的长期图像也暗示着周期性，1990s的早期和末期呈现大量的波浪，夹在中间的90年代中期却是一段相对平静的时期。
A long-term graph of the Vix hints at cyclicality, with periods of great choppiness in the early and late 1990s book-ending an era of relative calm in the middle of the decade.
另外一个(同时也是Shiller先生书里说的一个重点)是周期性调整市盈率，即过去十年内利润和股票数的比值。
The other (which was also an important point in Mr Shiller's book) is the cyclically adjusted price-earnings ratio, which compares shares with the profits earned over the previous ten years.
在公元1400年到1900年的时间跨度内，有一种周期性的循环，即在一段动乱之后，接着会有一个相对平静的阶段见图fig。
In A.D. 1400-1900 tends to follow a cyclic pattern with a turbulent period followed by a relatively tranquil one Fig.
这些2009年五月引进Bing所作的准备，将迎来六个月周期性的升级。
The upgrades have come in six-month cycles since the preparations for Bing’s introduction in May 2009.
20世纪80年代时科学家们认为地球周期性的生物灭绝可能是由遥远太空的涅墨西斯星球造成的，该星球和太阳很相似。
In the 1980s scientists believed that Earth's regular extinctions could be the result of a distant dark twin of the Sun, called Nemesis.
但库普切克不需要担心。因为韦斯特在14年里哪也没有去，虽然他会周期性的威胁说自己要走，但他对工作的热情依然不减。
Kupchak need not have worried. West wasn't going anywhere for 14 years, although he would periodically threaten to bolt as his job anxiety continued to rise.
任务将花费三年半时间盯住类似目标，搜索亮度周期性变化的恒星。
The mission will spend the next three-and-a-half years staring at the same stars, looking for periodic dips in brightness.
倒转过程不是真正具有像在太阳上那样的周期性，太阳磁场每11年出现倒转。
The reversal process is not literally periodic as it is on the sun, whose magnetic field reverses every 11 years.
根据功率谱分析，入海泥沙还存在着3年和10年左右的周期性波动。
According to the spectrum analysis, the sediment load also fluctuated at the periodicity of 3a and 10a.
在全省医院管理年活动的周期性检查评比中。
In the provincial hospitals' periodic inspection and assessment activities.
因为韦斯特在14年里哪也没有去，虽然他会周期性的威胁说自己要走，但他对工作的热情依然不减。
West wasn't going anywhere for 14 years, although he would periodically threaten to bolt as his job anxiety continued to rise.
在肯尼亚，旱灾是周期性的。以往，每隔十年就会有一次旱灾，而现在旱灾似乎来得更加频繁，持续的时间也更长。
Droughts are 1 cyclical in 2 Kenya. Before, they came every 10 years, but now they seem to be hitting us more often and for longer periods of time.
在肯尼亚，旱灾是周期性的。以往，每隔十年就会有一次旱灾，而现在旱灾似乎来得更加频繁，持续的时间也更长。
Droughts are 1 cyclical in 2 Kenya. Before, they came every 10 years, but now they seem to be hitting us more often and for longer periods of time.
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