機器
accuracy
accurate
background
caliper
closeup
cog
construction
control
design
digital
education
engineer
equipment
finger
flange
gage
gauge
gears
gearwheel
hand
inch
industrial
industry
instrument
man
measure
measurement
mechanic
metal
metallic
micrometer
object
office
old
paper
part
precise
precision
quality
ruler
scale
stainless
steel
table
technology
tool
vernier
white
work