英文關鍵字
antique
background
classic
clock
clockwork
close
closeup
cogs
design
detail
dirty
elegant
engine
engineering
equipment
gear
gears
gold
golden
grunge
industrial
industry
inside
instrument
machine
machinery
macro
mechanic
mechanical
mechanism
metal
metallic
old
passing
precision
pulse
resolution
retro
rhythm
rotation
silver
spring
steel
technical
technology
time
vintage
watch
wheel
wheels
work