英文關鍵字
blade
circle
circular
cut
cuts
cutting
danger
design
dirty
facing
factory
gray
industrial
industry
large
machine
massive
material
natural
pattern
processing
production
rock
saw
skill
stone
structure
surface
texture
tool
water
英文關鍵字
blade
circle
circular
cut
cuts
cutting
danger
design
dirty
facing
factory
gray
industrial
industry
large
machine
massive
material
natural
pattern
processing
production
rock
saw
skill
stone
structure
surface
texture
tool
water