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