| praseodymium |
a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
출처: wordnet.princeton.edu/perl/webwn
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| PRAS medium |
prereduced and anaerobically sterilized media, used for the culture of anaerobes. See Cary-Blair transport m. and peptone–yeast extract–glucose m.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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