sealing area

例句：

1. 1. The sealing area is crucial for the safety of the pipeline.
   密封区域对于管道的安全至关重要。
2. 2. The sealing area is where the two plates meet to form a seal.
   密封区域是两块板片相遇形成密封的地方。
3. 3. The sealing area needs to be cleaned regularly to prevent leaks.
   密封区域需要定期清洁，以防止泄漏。