atmosphere
background
big
building
chemical
construction
dangerous
ecology
electricity
energy
engineering
environment
equipment
facility
factory
fuel
gas
green
grey
high
horizontal
industrial
industry
iron
landscape
large
long
manufacturing
metallic
modern
oil
panorama
perspective
petrochemical
petroleum
pipe
pipeline
pipes
plant
power
powerful
refinery
reservoir
sky
smoke
steel
technology
tower
wide
works