| 单词 | rare-earth element |
| 释义 | rare-earth element in British English (ˌrɛərˈɜːθ ˈɛlɪmənt) noun any element of the lanthanide series another name for lanthaniderare-earth element in American English any of the series of metallic chemical elements, with consecutive atomic numbers of 57 (lanthanum) through 71 (lutetium) inclusive see also lanthanide: often called rare-earth metal |
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