rotenoid

例句：

1. 1. The scientist used a rotenoid to study the rotation of the earth's atmosphere.
   科学家使用一个旋转体来研究地球大气的旋转。
2. 2.The helicopter was equipped with a rotenoid for stabilization during landing.
   直升机装备了一个旋转体，用于降落时稳定。
3. 3.The engineer designed a new rotenoid for improved efficiency in the manufacturing process.
   工程师设计了一种新的旋转体，以提高生产过程中的效率。