機器
above
air
area
bed
brown
cast
clay
coal
copter
crushed
cut
cutter
deposit
dirt
ditch
drone
earth
environment
excavator
exploitation
extraction
gravel
huta
industry
landscape
loader
loading
logging
machinery
materials
mine
nature
open
output
pit
poland
production
quarrying
raw
resources
rock
sand
soil
stone
structure
surface
working