機器
3d
abstract
art
background
black
blueprint
cogwheel
concept
construction
design
detail
drawing
element
engine
engineering
equipment
frame
gear
graphic
idea
illustration
industrial
industry
isolated
line
machinery
mechanical
mechanics
mechanism
metal
model
modern
part
perspective
plan
power
render
science
shape
sketch
structure
system
technical
technology
wheel
white
wire
wire frame