機器
access
algorithm
allowed
author
authorization
background
business
businessman
closeup
concept
consulting
denied
desktop
digital
double
exposure
finger
fingerprint
future
hands
human
identification
international
journal
keyboard
laptop
lock
man
modern
multi
note
print
process
protection
quiz
safety
scanner
security
single
sketch
success
table
technology
think
typing
using
verification
workplace
writer
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