機器
燃やす
belt
belting
black
blue
bridge
brown
business
carbon
coal
concrete
construction
conveyor
conveyor belt
crusher
dust
energy
equipment
factory
fossil fuel
geology
global warming
gravel
heavy
industrial
industry
long
machinery
material
metal
mine
open pit
ore
pollution industry
power
processing
quarry
raw materials
rock
rough
smoke
soil
stone
technology
texture
transport
transportation
vehicle
work