機器
architect
background
built
cad
chalkboard
construct
construction
contour
design
designer
development
diagram
document
draft
drafting
drawing
engineer
engineering
gear
graphic
illustration
industrial
industry
layout
line
machinery
mechanical
mechanics
mechanism
object
outline
page
paper
parts
pattern
pencil
plan
plot
print
projection
scheme
shape
sketch
structure
technical
technology
template
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