英文關鍵字
abstract
alchemy
ancient
antique
art
black
classic
clock
clockwork
cog
cogwheel
composition
concept
cover
creative
decor
decoration
decorative
design
detail
element
engineering
gear
gears
geometric
geometry
machine
machinery
mechanical
mechanics
mechanism
medieval
metal
mystic
object
old
ornament
pattern
retro
round
steampunk
style
symbol
symbols
techno
technology
transmission
vintage
wheel
wheels