英文關鍵字
background
bark
brown
circle
cross
cut
cutting
deforestation
equipment
felling
firewood
forest
forestry
growth
harvesting
industrial
industry
log
logging
logs
looking
lumber
macro
material
natural
nature
old
pattern
pine
process
processing
rings
russia
saw
sawmill
section
shape
stump
texture
textured
timber
tree
trees
trunk
wood
wooden