機器
chemical
chemistry
chimney
company
complex
cooling
diesel
distillation
electricity
energy
engineer
environment
exterior
fabric
factory
fractional
fuel
fumes
furnace
gas
hazard
heat
heavy
industrial
industry
lights
manufacture
night
oil
petrol
petroleum
pipe
pollution
power
power plant
production
refinery
resource
smog
smoke
structure
technical
technology
toxic
tube
unleaded
work