- 封口: seal
- 磁碟封套: disk envelop
- 碟封管: disk-seal tube
- 封口: 1.(封闭张开之处) seal 信封口了吗? is the letter sealed?2.(闭合) heal 臂上的伤已经封口了。 the arm wound has healed.3.(闭口不谈) say sth. definitive so as to prevent further discussion
- 磁碟: disk; magnetic disc
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