aperiodic speed fluctuation

例句：

1. 1.The fluctuation in the stock market is causing concern among investors.
   股市的波动让投资者感到担忧。
2. 2. The aperiodic speed fluctuation has affected the performance of the company.
   无周期性速度波动影响了公司的业绩。
3. 3.The fluctuation in temperature caused by the wind is unpredictable.
   由风引起的温度波动是不可预测的。