environmental
air
business
chemical
chemistry
chimney
cloud
coal
construction
ecology
electric
electricity
energy
engineering
environment
factory
fuel
fume
gas
gasoline
generator
global
industrial
industry
manufacturing
metal
night
oil
petrochemical
pipe
pipeline
plant
pollution
power
production
refinery
sky
smog
smoke
smokestack
station
steam
steel
tank
technology
tower
toxic
tube
turbine
warming
定額
Chemical Plant factory with smoke stack. Smoke emission. Petrochemical industry with distillation column, drum and pipe in oil and gas. Ecology and environmental protection problems, air pollutionの素材 [FY310169561352]
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