Based on cyclic graph,this paper mensurate the connotaaive cycles of variable and give a kind of forecasting model with cyclic fluctuation,an instance indicates that this kind model improve the accuracy of economic forecasting.
本文利用周期图方法 ,搜索出变量的隐含周期 ,并在此基础上 ,构造含周期变动项的预测模型。
参考来源 - 含周期变动项的预测模型的建立与应用·2,447,543篇论文数据，部分数据来源于NoteExpress
It is found that the variation of the transmitted intensity with the rotation Angle deviates from Malus law, exhibiting a cyclic fluctuation with the rotation Angle.
实验中发现，透射光强曲线随着入射角的微小变化而偏离马吕斯定律，出现了周期性扰动。
There are more causes for the electricity demand fluctuation of the whole society, the paper analyzes the reasons for the cyclic fluctuation from the following sides: quantitatively and qualitatively.
中国电力需求周期波动影响因素很多，对影响因素的分析从定量和定性两个角度来考虑。
The meter scale cyclic sequences reveal the mixing water dolomitization resulted from frequent fluctuation of sea level.
米级旋回层序揭示了高频海平面变化引起的海水—淡水和盐水—淡水混合水白云石化。
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