personal unblocking code造句

A "'personal unblocking code "'( PUC ), also known as a "'PIN unlock key "'( PUK ), is used in 3GPP mobile phones to reset a personal identification number ( PIN ) that has been lost or forgotten.
A SIM card contains its unique serial number ( ICCID ), international mobile subscriber identity ( IMSI ) number, security authentication and ciphering information, temporary information related to the local network, a list of the services the user has access to, and two passwords : a personal identification number ( PIN ) for ordinary use, and a personal unblocking code ( PUK ) for PIN unlocking.
It's difficult to find personal unblocking code in a sentence. 用personal unblocking code造句挺难的