英文關鍵字
angle
apparatus
blacksmith
blade
circle
circular
construction
cut
cutting
day
diamond
disc
electric
engineer
equipment
fire
flash
frame
garden
grinder
grinding
hand
handheld
industrial
instrument
light
machine
male
man
manual
manufacturing
mechanic
metal
outdoors
renovation
repair
repairman
round
saw
sawing
spark
steel
summer
technology
tool
work
worker