密封的 /mìfēng de/ angolul

airtight▼(impermeable to air or other gases)
adjective
[UK: ˈeə.taɪt] [US: ˈer.ˌtaɪt]

hermetically sealed▼(airtight)
adjective

sealed▼(closed by a seal)
adjective
[UK: siːld] [US: ˈsiːld]