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单词 psilomelane
释义
Psilomelane
nnoun.substancea mineral consisting of hydrated basic oxide of manganese and barium; a source of manganese
Hypernyms:mineral
Inherited Hypernyms:psilomelanemineralmaterialsubstancematterphysical entityentity
Inherited Hypernyms:psilomelanemineralmaterialsubstancepartrelationabstractionentity
Substance Meronyms:Mn atomic number 25 manganese
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