英文關鍵字
parking
barrier
system
fixing
sensor
automatic
car
park
security
hd
access
arm
gate
building
business
cctv
camera
closed
control
credit
device
digital
enter
entrance
entry
exit
facility
guard
lock
machine
modern
office
people
private
road
safety
scan
scanner
science
sign
stop
street
symbol
technology
traffic
lights
transportation
vehicle
white