| 释义 |
稀土元素xītǔ-yuánsù镧、铈、镨、钕、钷、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥、钇、钪17种元素的统称。{rare-earth element; general term for the 17 elements — lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm); europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Ds), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), yttrium (Yt), and scandium (Sc);}也叫also稀土金属{xītǔ-jīnshǔ}。 |