機器
above
aerial
black
carrier
coal
crane
czech
dig
digger
dirty
dust
earth
energy
engineering
environment
equipment
excavator
extraction
factory
field
fuel
geology
global
grab
huge
industry
land
large
loader
machinery
mine
miner
mineral
moving
nature
operations
resourse
rock
soil
steel
top
train
transport
truck
view
wealth
winter
work
yellow