英文關鍵字
clothes
construction
electric
engineer
engineering
equipment
fabricate
fabrication
factory
fire
flake
flame
flashing
hot
industrial
industry
iron
man
manpower
manufacturing
mask
metal
metalworks
operative
protective
repairing
safety
skill
smock
smoke
spark
sparkle
steel
steelwork
torch
weld
wlder
work
worker
working