steam valve bonnet

例句：

1. 1.The steam valve bonnet is essential for maintaining the proper pressure and temperature in the system.
   蒸汽阀门罩对于保持系统内适当的压力和温度至关重要。
2. 2. The engineer carefully inspected the steam valve bonnet before installing it.
   工程师在安装前仔细检查了蒸汽阀门罩。
3. 3. The steam valve bonnet was designed to prevent leaks and ensure safe operation of the system.
   蒸汽阀门罩的设计旨在防止泄漏并确保系统的安全可靠运行。