dead beat escapement

例句：

1. 1. The engineer designed a new system to improve the efficiency of the factory's production line.
   工程师设计了一个新的系统来提高工厂生产线的效率。
2. 2.The team worked tirelessly to overcome the challenges and achieve their goals.
   团队不懈努力克服挑战，实现目标。
3. 3. The scientist conducted experiments to determine the effects of pollution on the environment.
   科学家进行实验以确定污染对环境的影响。