英文關鍵字
business
busy
company
companymetal
construction
education
electric
engaged
engineering
equipment
facilities
factory
fire
gas
glove
glow
gondola
hand
hot
industry
installation
iron
job
machine
manufacturer
manufacturing
men
metal
metalstructures
occupation
office
plasma
shift
shop
slowmotion
smoke
sparkle
sparks
steel
team
technology
tool
tools
welder
welding
weldingelectric
wizard
work
worker