機器
abstract
array
black
calculating
calculation
chrome
closeup
coil
company
construction
detail
equipment
gearbox
gearing
hammer
historic
industrial
industry
iron
isolated
levee
machinery
macro
mechanic
mechanical
mechanism
metal
metallic
object
old
pattern
pipe
precision
printer
production
quality
row
screw
sheet
silver
spiral
spring
steel
technology
texture
typewriter
unit
white
zinc