| 释义 |
corundum oligoclase pegmatite
- 伟晶岩wěi jīng yán
pegmatite
- 结晶花岗岩jié jīng huā gǎng yán
pegmatite
- 刚玉砂轮gāng yù shā lún
corundum wheel; corundum grinding wheel
- 刚玉gāng yù
corundum; adamantine spar
- 金刚砂jīn gāng shā
emery; corundum; carborundum; silicon carbide; electrolon
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