contact seal

例句：

1. 1.The engineer used a special contact seal to ensure the electrical connection was secure.
   工程师使用一种特殊的接触密封来确保电气连接是安全的。
2. 2.The new product uses a contact seal to prevent leakage during transportation.
   新产品使用了接触密封以防止运输过程中的泄漏。
3. 3. The contact seal is crucial for maintaining the integrity of the electronic circuit.
   接触密封对于保持电子电路的完整性至关重要。