機器
prefecture
activity
architecture
built
chemical
chemistry
chimney
climate
coal
complexity
construction
cooling
danger
distillation
electricity
energy
environment
environmentalist
exterior
factory
fossil
fuel
gas
gasoline
generation
generator
global
industry
machinery
natural
nature
occupation
part
pipe
pipeline
pollution
power
refinery
reserve
science
smoke
station
steam
structure
technology
towers
ukraine
unhygienic
warming