英文關鍵字
building
bush
business
chemical
cloud
cloudy
construction
container
day
ecology
emit
energy
engineering
factory
field
grass
harm
industrial
industry
kuibyshev
kuybyshevfosfor
manufacturing
mineral
nobody
noone
outdoor
outside
phosphor
phosphorus
pipe
pipeline
plant
plants
power
production
reservoir
resources
round
russia
rusty
sky
smog
smoke
sphere
spherical
storage
technology
tower
tube
zone