valve relay box

例句：

1. 1.The new valve relay box has been installed in the factory's automation system.
   新安装的阀门继电器盒已安装在工厂的自动化系统中。
2. 2.The technician carefully checked each component of the valve relay box to ensure it was working properly.
   技术员仔细检查了阀门继电器盒的每一个组件，以确保其正常工作。
3. 3. The valve relay box is essential for maintaining the safety and reliability of the industrial process.
   阀门继电器盒对于维护工业过程的安全性和可靠性至关重要。