| 词汇 | manganese dioxide |
| 释义 | Definition of manganese dioxide in English:manganese dioxidenoun
OriginMid 19th century; earliest use found in Henry Roscoe (1833–1915), chemist and university administrator. Definition of manganese dioxide in US English:manganese dioxidenoun
OriginMid 19th century; earliest use found in Henry Roscoe (1833–1915), chemist and university administrator. |
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