英文關鍵字
area
areas
chip
chipper
chipping
clambunk
claws
cut
cutting
dense
down
equipment
feeled
felled
felling
forest
forestry
heavy
hydraulic
industry
jaws
large
lighting
loading
log
logs
lumber
lumbering
machinery
machines
manage
natural
nature
people
power
preserving
real
specialists
timber
time
tools
toolsnheavy
trees
wood
woodland
woodpile
woods
work
worker
working