機器
automatic
button
car
cell
cellphone
choice
choose
communication
connect
connection
contactless
customer
digital
display
drink
electronics
equipment
female
frequency
girl
hold
identification
industry
intelligence
lady
machinery
mobile
nfc
outdoor
pay
paying
payment
phone
scan
smart
smartphone
soft
start
stop
sync
system
technology
teller
touch
use
vending
wireless
woman