resistance to air loss

• 气密性

resistance to air loss的用法和样例：

例句

1. The resilient diaphragm assures bubble-tight closure to flow.
   弹性隔膜确保流体的气密性关闭。
2. The special connections ensure that the system has excellent air tightness.
   特别的连接方式保证了系统优良的气密性。