機器
agribusiness
atmosphere
bio ethanol
brazil
building
business
cane
chimney
climate
construction
device
dirty
ecology
energy
environment
equipment
ethanol
factory
food
fuel
global
grass
industrial
industry
large
machinery
manufacturing
metal
mill
pipe
plant
pollution
processing
production
refinery
roller
roof
sky
smoke
steam
steel
structure
suck
sugar cane
sugarcane
technology
warming
waste
work