名词
中文翻译：Unknown
同义词：
['airtight cover', 'airtight seal', 'airtight closure']
例句：
-
1. The air cover on the window prevents dust from entering.
窗户上的气密盖防止灰尘进入。
-
2. The air cover is designed to keep the contents fresh and safe.
气密盖的设计是为了保持内容物的新鲜和安全。
-
3. The air cover was removed to inspect the damage.
为了检查损坏情况，移除了气密盖。