機器
axis
black
black background
bolt
bright
business
close up
closeup
cool
copy space
gray
image
indoors
industrial products
industry
macro
manufacturing industry
metal
metallic luster
multiple
no people
one
parts
plus
process
production
screw
shiny
silver
simple
space
spiral
still life
studio
studio shot
taking a shot
taking things
text space
unmanned
up