| polystyrene |
A type of plastic foam. It is often used in insulation, plates, egg cartons, coffee cups and disposable food containers. Anything made of this product is not very biodegradable and is also difficult to recycle.
출처: www.lalc.k12.ca.us/target/units/recycle/activities...
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|---|---|
| polystyrene |
Lightweight (usually white) expanded foam packing material used to protect delicate objects.
출처: www.papiermache.co.uk/exec/cms-glossary/
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