機器
bank
banking
black
buy
card
cashless
cellphone
checkout
chip
communication
concept
consumer
contactless
counter
debit
design
digital
electronic
field
filled
finance
flat
glyph
graphic
icon
illustration
isolated
mobile
near
nfc
pay
paying
payment
phone
purchase
reader
sign
silhouette
smart
solid
symbol
system
technology
terminal
transaction
web