tristate control

例句：

1. 1.The tristate control system is designed to ensure the safety of all passengers.
   三州控制系统旨在确保所有乘客的安全。
2. 2. The tristate control system has been implemented in many cities across the country.
   三州控制系统已在全国各地的许多城市实施。
3. 3. The tristate control system is a crucial part of our transportation infrastructure.
   三州控制系统是我们交通基础设施的重要组成部分。