cyclic curve

例句：

1. 1. The shape of thecycle is determined by the length of theperiod.
   周期的形状由周期的长度决定。
2. 2. Thecyclic nature of the process means thatit repeats itself.
   这一过程的周期性意味着它自身会重复。
3. 3. Thecyclic pattern in thedata suggests a recurringtrend.
   数据中的循环模式表明存在一种反复出现的趋势。