bellow expansion joint

例句：

1. 1. The engineer designed thebellow expansion joint to accommodate the suddenincrease in temperature.
   工程师设计了这种膨胀节，以适应温度的突然升高。
2. 2. Thebellow expansion joint is essential for maintainingthe structural integrity of the bridge.
   膨胀节对于保持桥梁结构完整性至关重要。
3. 3. The bellowexpansion joint was installed to prevent water fromseeping into the foundation during heavy rains.
   膨胀节被安装来防止在大雨期间水分渗入地基。