nonrotation

例句：

1. 1. The machine's design is optimized for nonrotation.
   机器的设计是优化的，以便于非旋转。
2. 2. During the test, the sample was rotated at a constant speed to ensure nonrotation.
   在测试期间，样品被以恒定速度旋转，以确保非旋转。
3. 3. The research focused on the effects of nonrotation on the material's properties.
   该研究专注于非旋转对材料属性的影响。