英文關鍵字
belt
blow
bottle
bottled
can
chemical
clean
container
conveyor
eco
ecology
empty
enterprise
equipment
facility
factory
garbage
heap
industrial
industry
lemonade
line
machine
machinery
manufacture
manufacturing
modern
molding
motion
nobody
packaging
packing
pets
pipe
plant
plastic
pollution
preform
production
recycle
recycling
reuse
synthetic
technology
waste