英文關鍵字
background
black
blue
closeup
color
design
detail
device
engineering
equipment
factory
high
industrial
industry
machine
machines
manufacture
manufacturing
mechanical
metal
modern
new
newspaper
office
offset
paper
part
plant
press
printer
printing
process
processing
production
roll
rollers
speed
speedclose
steel
tech
technology
tool
transportation
work
workshop