機器
access
advanced
appliances
carry
cell phone
cellular phone
communication
communication equipment
communications
correspondence
cutting edge
electornic appliances
electric appliances
electrical appliances
electronics
email
household electronics
internet
liquid crystal
machinery
mobile
mobile phone
multiple
net
network
object
phone
phone call
plural
portable
precision mechanical equipment
science
science and technology
science tech
scientific technology
screen
state of art
still image
still life
still life objects
technology
telephone
telephone call