flexural number

例句：

1. 1. The curved surface of the bridge is a perfect example of a flexural number.
   这座桥的弯曲表面是弯曲数的一个完美例子。
2. 2.In mathematics, a flexural number is a sequence of numbers that follows a specific pattern.
   在数学中，一个弯曲数是一个遵循特定模式的数字序列。
3. 3. The study of flexural numbers has applications in fields such as engineering and materials science.
   弯曲数的研究在工程和材料科学等领域有应用。