rotaxis

例句：

1. 1. The machine's rotaxis is responsible for itssmooth operation.
   这台机器的旋转轴负责其平稳运行。
2. 2. The scientist found therotaxis to be crucial in the experiment.
   科学家发现旋转轴在实验中至关重要。
3. 3.The car's rotaxis was designedto provide a smooth ride.
   汽车的旋转轴被设计来提供平稳的驾驶体验。