英文關鍵字
agriculture
bark
brown
bunch
business
carrying
crane
cutting
deforestation
delimbing
engine
equipment
fallen
fir
forest
forward
germany
gripping
harvesting
heap
hydraulic
industrial
industry
instrument
land
log
lumber
machine
material
mill
mobile
nature
occupation
outdoors
plant
plants
platform
raw
reaching
resource
sawing
stack
stacking
the
timber
transportation
tree
vehicle
way
wood
woodpile
woods