flameproof joint with floating gland

例句：

1. 1.The engineer designed a flameproof joint to ensure the safety of the construction site.
   工程师设计了一个防火接头，以确保施工现场的安全。
2. 2.The new building has a flameproof joint that prevents fire from spreading.
   新建筑有一个防火接头，防止火势蔓延。
3. 3.The manufacturer claims that their flameproof joint is the best in the market.
   制造商声称他们的防火接头是市场上最好的。