sinusoidal wave

例句：

1. 1. The sinusoidal wave was caused by the wind blowing through the valley.
   这个正弦波是由风吹过山谷造成的。
2. 2. The sinusoidal wave is a common type of wave in nature.
   正弦波是自然界中常见的波形之一。
3. 3. The sinusoidal wave has a period of 2π radians, which means it repeats every 2π radians.
   正弦波的周期为2π弧度，意味着它每2π弧度重复一次。