cyclic fluctuation

• 周期波动

cyclic fluctuation的用法和样例：

例句

1. The periodic fluctuation of economic development probably causes fluctuation of electricity demand.
   摘要经济发展的周期波动必然引起电力需求的波动。
2. The model overcomes the unpredictability due to monotonicity and periodical fluctuation of freight volume.
   该模型克服了货运量的单调性和周期波动性给预测带来的困难。