機器
3d illustration
big
blueprint
boom
bucket
chain
coal
destruction
dig
dragline
dragrope
drawing
dredger
dust
earth
equipment
excavation
excavator
exploration
heap
heavy
hoistloader
huge
industrial
industry
line
machinery
mining
model
mover
operator
ore
outdoors
outline
overburden
power
quarry
rock
sketch
structure
transport
transportation
walking
wire frame
wireframe
work
worker