機器
accuracy
accurate
anker
antique
balance
brass
chronometer
circular
clock
clockwork
closeup
cog
cogwheel
complexity
component
detail
engage
engineering
equipment
gear
gearwheels
hour
industry
inside
interior
mechanical
mechanism
metal
metallic
minute
moss
motion
movement
nature
object
old
part
photographed
power
precise
precision
progress
ratio
retro
rotate
small
technology
turn
wheel