cobalt.
| 单词 | θ68669 |
| 释义 | the world > matter > chemistry > elements and compounds > metals > specific elements > cobalt > [noun] (5) Co1814 cobalt. cobalt1863 One of the chemical elements, a metal of a greyish colour inclining to red, brittle, slightly magnetic; in many respects closely resembling nickel… Subcategories:— compounds (3) |
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