确定一次完整的波动周期，可以从一个波峰到另一个波峰，也可以从一个波谷到另一个波谷，或者按周期中同样状态(高峰、低潮或整个周期)一些年的平均值到另一些年的平均值来衡量。
... cycle of concentration 循环倍率；浓缩周期 cycle of fluctuation 波动周期 cycle of freezing and thawing 冻融循环 ...
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周期波动 cyclical swings ; cyclical fluctuation ; cyclic swing
高频波动周期 high frequency wave period
经济周期波动 economic cyclical changes ; [经] business cycle fluctuation ; business fluctuation ; CGDPR
长周期波动 long term cyclic fluctuation ; long period fluctuation ; long-period fluctuation
P波初动半周期 half period of the first arrival P wave
反周期波动的财政政策 countercyclical fiscal policy
内生周期波动 endogenous business cycle
增长周期波动 Growth Cycle
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.
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