periodic analysis meaning in English

定期分析
周期分析

The periodic analysis of realized volatility in china stock market
波动率的周期性研究
Another is maximum allowable dispatching the effectiveness of flood control and actives . with the extension of hydrological observation data and accumulation of reservoir operation experiments , periodic analysis and research the reservoir design flood is basic of operating above two aspects
随着水文观测资料的延续和水库运行经验的积累，定期对水库设计洪水进行分析研究是保证水库实现上述两大职责的基础。