mercury switch interlock

例句：

1. 1. Thesafety system uses a mercury switch interlock to prevent accidental activation of the emergency brake.
   安全系统使用水银开关互锁来防止意外激活紧急刹车。
2. 2.The new model has a mercury switch interlock that ensures the engine is only started when all doors are closed.
   新款模型有一个水银开关互锁，确保只有当所有车门都关闭时发动机才能启动。
3. 3. The mercury switch interlock was designed to prevent unauthorized access to the control panel during maintenance.
   水银开关互锁被设计成在维护期间防止未经授权访问控制面板。