| 单词 | 封闭物 |
| 释义 | 〔seal〕A closure, as on a package, used to prove that the contents have not been tampered with.封条：一种用来证明其中内容尚未损伤的封闭物，如用在包装上〔closure〕Something that closes or shuts.封闭物，关闭物：关闭或合上的某物〔nacelle〕A separate streamlined enclosure on an aircraft for sheltering the crew or cargo or housing an engine.发动机舱，短舱：在飞机上，为了保护全体工作人员、货物或遮蔽发动机的单独的流线型封闭物〔pressurize〕To maintain normal air pressure in (an enclosure, as an aircraft or a submarine).使（封闭物里如飞机或潜艇中）维持正常的气压 |
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