機器
bright
business
close up
closeup
copy space
design
design drawing
development of
document
drawing
drawings
electronics
engineer
engineering
fig
handwriting
idea
image
industrial
maker
mechanical
metal
no person
nobody
paper
pen
pencil
plotting
processing
production
simple
size
studio
studio shooting
technology
the study
there is no person
tolerance
tool
white
white back
white background
white space
work