单词	cryogenics
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	Noriega, Manuel norm normal normality normalization normalize normally Norman Norman, Barry Norman Conquest Normandy Normandy Landings normative norovirus Norse Norseman North north North America North American Northamptonshire North Atlantic Treaty Organization northbound North by North West North Carolina

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