reversal of pole

例句：

1. 1. The engineer made a reversal of the pole to fix the problem.
   工程师把杆子倒过来解决了问题。
2. 2. The scientist conducted a reversal of the pole to study the effects on the environment.
   科学家进行了杆的逆转研究对环境的影响。
3. 3. During the construction, the workers had to make a reversal of the pole to avoid colliding with each other.
   在施工过程中，工人们不得不将杆子倒过来以避免相互碰撞。