英文關鍵字
automatic
background
blade
blue
building
chamfer
circle
closeup
construction
cut
cutter
cutting
detail
engineering
equipment
factory
fire
gloves
hand
hot
industrial
industry
iron
job
lawn
makes
man
manufacturing
metal
nippers
object
pipe
pipes
plant
plastic
power
production
protection
repair
safety
sprinklers
system
technology
tool
tube
water
watering
welding
white
work
worker
working
workshop