es·cape·ment
noun/ɪˈskeɪpmənt/
/ɪˈskeɪpmənt/
[usually singular]- a machine in a clock or watch that transfers movement from the spring or weight to a wheel or pendulum that is connected to the hands
擒纵装置：钟表中的机械装置，将运动从弹簧或重物转移到与指针相连的轮子或摆锤上 Word Originlate 18th cent.: from French échappement, from échapper ‘to escape’.