单词	cryogenic
释义	cryogenicscry‧o‧gen‧ics /ˌkraɪəˈdʒenɪks/ noun [uncountable] Word Origin WORD ORIGINcryogenics Origin: 1900-2000 cryogen ‘substance producing low temperatures’ (19-21 centuries), from Greek kryo- (from kryos ‘very cold’) + English -gen ‘producing’ (from Greek -genes ‘born’) Examples EXAMPLES FROM THE CORPUS This removes half of the cryogenics problem but leaves us with liquid oxygen. the scientific study of very low temperatures—cryogenic adjective
随便看	northeaster northeasterly northeastern Northeast Passage northeastward northeastwards northerly northern northerner northern hemisphere Northern Ireland Northern Ireland Assembly Northern Lights Northern Marianas northernmost Northern Rock Northern Territory North Island North Korea North Korean North Pole North Sea North/South divide Northumberland Northumbria

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