英文關鍵字
recycled
plastic
grate
polymer
particle
industry
granule
propylene
machine
pellet
polyethylene
grain
recycle
technology
automatic
industrial
conveyor
granulate
waste
recycling
slowmotion
belt
plant
polypropylene
ecology
separation
factory
vibration
manufacturing
bounce
facility
material
polystyrene
sorting
move
resource
mechanical
trash
element
renewal
automate
system