機器
adjusting
background
blade
blurred
chainsaw
combustion
concepts
cut
dirty
engine
equipment
firewood
gardening
gasoline
glove
hand
horizontal
human
industrial
industry
internal
job
lawn
lumber
metal
motion
motor
mower
object
objects
part
parts
power
professional
protective
rasp
repair
repairing
sharp
sharpening
small
steel
technology
timber
tool
tree
wood
work
workwear