機器
accuracy
accurate
background
ball
bearing
blueprint
body
business
caliper
centimeter
closeup
construction
document
drawing
engineering
equipment
hand
inches
industrial
industry
instrument
job
man
measurement
measuring
metal
metallic
mete
meter
micrometer
millimeter
object
pattern
radius
rule
ruler
scale
scall
science
single
steel
technical
technology
tool
trammel
vernier
vernier caliper
white
work