英文關鍵字
background
boring
brush
building
business
class
closeup
complex
contemporary
controller
conveyor
cutting
design
development
electrical
electrician
electronics
engineering
enterprise
equipment
factory
hammer
home
house
indoors
industrial
industry
interior
lighting
machine
machinery
mechanism
melting
metal
milling
natural
old
parts
people
plant
plasma
processing
production
profession
real
red
robotics
technical
technique
terms
time
travel
treated
turner
two
welder
welding
wood
working