機器
abstract
architectural
architecture
backdrop
background
blue
blueprint
build
cad
car
construction
cover
design
designer
detail
diagram
documentation
draft
draw
drawing
electrics
engine
engineer
engineering
estate
floor
gear
illustration
industry
investment
line
machinery
maintenance
mechanical
mechanics
mechanism
motor
outline
paper
plan
print
reconstruction
scheme
sketch
structure
technical
technology
white