機器
accuracy
adult
caliper
calliper
closeup
control
engine
engineering
equipment
expertise
factory
hand
hand caliper
horizontal
inch
industry
instrument
iron
lathe
machining
macro
manual
manufacturing
measurement
measuring
mechanical
metal
metalwork
meter
micrometer
occupation
plan
production
skill
slide gage
steel
technology
tool
trammel
turning
work
worker
workshop