fused seal

例句：

1. 1. The fused seal on the door is secure.
   门上的熔合密封是安全的。
2. 2.The welded seal between the plates ensures a strong joint.
   板之间的焊接密封确保了坚固的连接。
3. 3. The fused seal helps prevent leaks during transportation.
   熔合密封有助于在运输过程中防止泄漏。