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.
结构回波损耗是通信电缆的重要指标之一，而电缆绝缘线芯的水电容可综合反映生产线上的周期性缺陷。
SRL (structural return loss) is one of the important indicators of telecom cables, while the capacitance in water of cable may reflect the periodic defect of the production line.
采用变异率指标与谐波分析法研究了1978-2000年水产品年度收购价格波动的周期性。
The fluctuation circle of aquatic products price between 1978 and 2000 via ratio of variation and harmonic wave was researched.
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