英文關鍵字
accuracy
ancient
antique
background
balance
circle
clock
clockworks
close
closeup
cog
cogs
cogwheel
collect
copper
cylindrical
design
detail
engineering
gear
hour
inside
instrument
iron
machine
macro
mechanical
mechanism
metal
metallic
minute
motion
movement
old
part
power
precision
reliability
retro
small
steam
steampunk
steel
stopwatch
time
turn
vintage
watch
wheel
work