英文關鍵字
accuracy
calculating
calipe
construction
control
craft
diameter
engineer
engineering
equipment
experienced
eye
factory
gloves
hand
hard
hat
helmet
indoors
industrial
industry
job
keen
lifestyle
maintenance
making
manual
manufacturing
measure
measuring
mechanical
mechanician
metal
occupation
overalls
part
plant
professional
progress
protective
quality
repair
repairing
repairman
safety
service
skill
spindle
technician
technology
tool
tools
vernier
work
worker
working
workshop