rotational energy barrier

例句：

1. 1. The new design of the car has a significant improvement in its rotational energy barrier.
   汽车的新设计在旋转能量障碍方面有显著的改进。
2. 2.The research on the rotational energy barrier is still in its early stages.
   关于旋转能量障碍的研究仍处于初级阶段。
3. 3. The team successfully overcame the rotational energy barrier to complete the project ahead of schedule.
   团队成功克服了旋转能量障碍，提前完成了项目。