bar
big
boiler
burner
construction
control
electricity
energy
engine
engineering
equipment
factory
fix
gas
generate
generation
hall
heat
hot
huge
industrial
industry
inside
line
metal
modern
new
old
pipe
plant
pressure
process
production
repair
repairment
rusty
station
steam
steel
structure
supply
tall
thermal
tower
tube
unit
warm
warming
warmth
water