機器
environmental
air
building
bulldozer
chemical
color image
construction
contamination
damage
disaster
environment
equipment
excavator
factory
heavy
horizontal
hydraulics
images
industrial
industry
issue
large
machinery
mining
no people
outdoors
oxidizers
photos
plant
point
pollutants
pollution
power
problem
risk
scoop
shovel
site
smog
smoke
soil
source
thermal
transport
transportation
truck
vehicle
定額
The big bulldozer and industrial pollution. Pollution is the introduction of contaminants into the natural environment that cause adverse change.の素材 [FY310199548861]
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