英文關鍵字
abandoned
assembly
broken
building
construction
electric
electrode
engineering
equipment
factory
fire
footage
gear
gloves
handheld
industrial
industry
iron
job
labour
light
machine
maintenance
man
manual
manufacture
manufacturing
mask
metal
metallic
metalwork
occupation
operator
people
pipeline
power
production
professional
protect
protection
repair
safety
skill
smoke
spark
sparks
steel
structure
technician
technology
tool
weld
welder
welding
windows
work
worker
workplace
workshop