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Passeriformes
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MPEG-4
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Supplementary service
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MRI
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ESA
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Antiepileptic
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Meiosis
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Organic phosphate group
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Beetroot
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Cannula
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Anti-oxidant
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Akinesia
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Larva
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PGP
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Elgamal signature scheme
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Bigelow Aerospace
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Hormone therapy
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Outer ear
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Hoar frost
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Playlist
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Ginkgo
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Internal haemorrhoid
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Debugger
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Chronotherapy
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Black ice
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Magnet
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Stamping mill
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CPU cache
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Strong opioid analgesic
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Transplant
Polystyrene
Polystyrene (PS) is a polymer of which the monomer (the repeated species) is styrene, formed of a benzene ring attached to a CH-CH2chain. It is obtained from petroleum-derived products.
Polystyrene is hard and strong. It can be mixed with a gas to obtain a very light material. Polystyrene is used as thermal or acoustic insulation, in packaging (for protection from shocks) or low density filling (e.g. to obtain buoyancy).
Two types of polystyrene can be produced:
Polystyrene sheets. © DR
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