| 单词 | negative crystal |
| 释义 | Definition of negative crystal in English:negative crystalnoun
OriginMid 19th century; earliest use found in David Brewster (1781–1868), natural philosopher and academic administrator. Definition of negative crystal in US English:negative crystalnoun
OriginMid 19th century; earliest use found in David Brewster (1781–1868), natural philosopher and academic administrator. |
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