機器
activity
blade
building
buildings
bulldozer
cane
cleaning
clearing
clearthearea
construction
continuous
crawler
development
dirt
ditch
dump
dumptruck
earthmoving
ecology
energy
engineering
equipment
firewood
forest
forestry
heap
heavy
industrial
infrastructure
land
mining
mover
mud
natural
plavni
railway
reed
renewable
ripper
road
russia
straw
timber
tractor
transport
treetrunks
work
worker
yellow