機器
aerial
black
coal
combine
dig
digger
dressing
drown
dump
ecology
energy
excavator
field
flood
geology
heavy
heavy equipment
industrial
industry
inundate
iron
lake
land
landscape
large
metal
mine
mineral
mining
moving
natural
nature
open
ore
overflow
power
quarries
quarry
quarry machine
quarry stone
road
soil
stone
strip
submerge
surface
swamp
water