英文關鍵字
auto
background
bit
blur
business
carpenter
carpentry
change
close
construction
control
dirty
drill
engineer
equipment
factory
hand
handicraft
hole
industrial
industry
instrument
lathe
machine
machinery
manager
manual
manufacturing
metal
outdated
plant
process
production
repair
repairman
room
safety
space
technology
tool
twist
view
work
workbench
worker
workman
workshop