Rare-earth element
volume
British pronunciation/ɹˈeəɹˈɜːθ ˈɛlɪmənt/
American pronunciation/ɹˈɛɹˈɜːθ ˈɛlɪmənt/

"rare-earth element"の定義と意味

Rare-earth element
01

any element of the lanthanide series (atomic numbers 57 through 71)

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