英文關鍵字
accuracy
assembling
block
board
click
communication
connect
device
electrical
entrance
entry
entryphone
equipment
external
fix
frame
hand
home
inner
input
insert
install
intercom
interphone
lens
line
male
man
microphone
mount
part
phone
prepare
ring
safety
security
specialist
system
technician
technology
telecommunication
terminal
tool
urban
video
wall
worker