gas sealing agent

例句：

1. 1. The engineer used a gassealing agent to prevent leaks duringthe installation process.
   工程师使用一种气体密封剂来防止安装过程中的泄漏。
2. 2. The gassealing agent was designed to ensure tightjoints between pipes and valves.
   这种气体密封剂被设计用来确保管道和阀门之间的紧密连接。
3. 3. The gassealing agent was testedfor its effectiveness in preventing gasleaks.
   这种气体密封剂被测试了其预防气体泄漏的效果。