稚贝足丝的分泌，具有明显的日周期性变化，昼夜差异极显著。
The secrete of young shellfish foot-thread has the obvious sun periodicity change, the difference of its day and night is marked.
鉴于时负荷的日周期性及周周期性，基于灰色系统理论，提出一种周期比值灰色预测模型，对未来24小时负荷进行预测。
In view of weekly periodicity and daily periodicity of hourly load, a periodic ratio grey model for hourly load forecasting has been set up with grey system theory.
有一些流量趋势是周期性的，比如，工作日的流量比周末的流量大，或者是夏天月份的流量比其他季节流量低。
Some traffic trends are cyclical, e.g. there is more traffic during the week than the weekend or the summer months are slower than non-summer months.
应用推荐