地磁活动是地球磁场的自然变化，其波动周期为11年。
Geomagnetic activity, the natural variations in Earth's magnetic field, it fluctuates in 11-year cycles.
讨论了生物量波动周期与多种环境因子的相关性。
The relationship between the fluctuation period of biomass and the various environmental factors was discussed.
人们可以自信地说，2008年是一个结构性转变，走向一个更大的波动周期回来。
One can confidently say that 2008 represents a structural break, moving back toward a period of greater volatility.
结果表明：摇摆条件下摩擦阻力系数随时间周期性波动，波动周期等于摇摆运动周期。
The results show that the friction coefficient in rolling condition fluctuates with time and the period is equal to that of rolling movement.
大脑细胞网络在清醒周期和波动周期之间徘徊-生物电活动的“雪崩”会串联到所有神经元。
Networks of brain cells alternate between periods of calm and periods of instability - "avalanches" of electrical activity that cascade through the neurons.
通过分析沉积波动周期与各级层序持续时间的对应关系，找出了高频沉积波动特征与生储盖之间的对应关系。
It is shown that cycle of sedimentary wave is response to each order sequence and the character of high frequency wave is correlated with oil source, reservoir and cap rock.
在经济繁荣时期宏观经济波动周期的各个阶段，财政收入会呈上升趋势，但在经济衰退中，财政收入会呈下降趋势。
Macroeconomic fluctuations cycle stages in the economic boom, fiscal revenue upward trend in the economic recession, fiscal revenue showed a downward trend.
为了研究原子尺度下摩擦力波动现象产生的本质，利用分子动力学模拟的方法从摩擦力波动周期的角度对其进行探讨。
In order to investigate the origin of the oscillation of friction force on the atomic scale, Molecular dynamics simulation is employed to research it from the period of the oscillation.
罗伯特f·恩格尔，在纽约大学金融学教授谁是2003年诺贝尔经济学奖得主，已经表明，最大的波动周期是可以预见的。
Robert F. Engle, a finance professor at New York University who was the Nobel laureate in economics in 2003, has shown that periods of greatest volatility are predictable.
但是，随着时间的推移，通过更有效管理和更多提供的服务，股市周期波动逐渐平缓。
But over time the stock cycle has been flattened by better management and the growth of services.
这种格局变化意味着大宗商品价格与美国经济周期同步波动的历史可能改变，美国衰退已不大可能会引致油价下跌。
This shift means that the usual relationship between America's business cycle and commodity prices may change. Past American recessions have sent the prices of oil and other resources down.
太阳亮度以11年为周期波动。
严重依赖大宗商品(市场波动剧烈)产出和出口的国家都熟悉这些商品可能形成的周期了。
Countries that depend heavily on output and exports of commodities whose markets are volatile are all too familiar with the cycles these can create.
过于严格的规则体系可能导致经济低迷时期的政策趋紧，但对经济周期不加干预也可能导致波动加剧，英国的财政混乱就是一个例子。
Overly rigid rules may spur tighter policy in a slump, but allowing for the cycle can leave too much wriggle room, as Britain's fiscal mess shows.
新兴经济体之所以在对抗经济周期上显得吃力，部分因为他们的景气波动更加明显。
Emerging economies struggle to fight business cycles partly because theirs are more pronounced.
五月六号的事件或许是个例外，但是市场的周期性波动却是不争的事实。
The events of May 6th may have been exceptional but a period of market volatility is not.
在12月份下旬，一直受周期性欧洲经济危机影响而波动的美元重回低位。
In late December, the dollar resumed a decline that has been interrupted only by periodic European crises.
20世纪20年代末和30年代初，美国和欧洲经济波动表现为典型的奥地利周期。
The US and European business cycle of the late 1920s and early 1930s was a classic Austrian cycle.
纯天然海洋周期性波动极大影响着这些温度的变化，也影响着来自热带的传热模式。
These temperature shifts are heavily influenced by entirely natural ocean cycle fluctuations that affect heat transfer patterns from the tropics.
并且如果平均失业周期有任何波动，刚刚大学毕业的人群将比1982或是1983年毕业的那群人更难找到合适的工作。
And if the average duration of unemployment is any indication, it's even harder for new graduates to find decent jobs now than it was in 1982 or 1983.
第二，奥巴马应该站出来支持反周期波动管理政策。
Second, Obama should come out in favor of countercyclical regulatory policy.
不仅仅是商业周期到了生产率增长速度减慢这一点，它还有加剧暂时生产率波动的几个特征。
Not only has the business cycle reached the point at which productivity growth usually slows, it also has several characteristics that may have exacerbated temporary productivity swings.
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.
冷却将降至洋流和北大西洋温度的周期性波动，这是被称为北大西洋涛动现象（NAO）的特征。
The cooling would be down to cyclical changes to ocean currents and temperatures in the North Atlantic, a feature known as the North Atlantic Oscillation (NAO).
作为全球波动较大、周期性较强的行业之一，半导体设备行业是一个很好的例证。
The semiconductor equipment sector, one of the world's more volatile and cyclical businesses, is a case in point.
作为全球波动较大、周期性较强的行业之一，半导体设备行业是一个很好的例证。
The semiconductor equipment sector, one of the world's more volatile and cyclical businesses, is a case in point.
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