中英词典查询

ultramafic [ˌʌltrə'mæfɪk]

adj. 超碱的,超基性的;

例句:

  • Biotite is a subordinate constituent of the mafic and ultramafic rocks generally.
    黑云母一般是镁铁质及超镁铁质岩石中的次要成分.