bucket brigade switch

例句：

1. 1. The bucket brigade switch is a critical component of the firefighting system.
   桶队开关是消防系统的关键组成部分。
2. 2. During the flood, the bucket brigade switch was used to direct water flow.
   洪水期间，桶队开关被用来控制水流。
3. 3. The bucket brigade switch was designed to prevent the spread of disease in hospitals.
   桶队开关的设计目的是在医院中防止疾病的传播。