| 单词 | virgin copper |
| 释义 | > as lemmasvirgin copper virgin copper n. (see quots.). ΘΚΠ the world > the earth > minerals > types of mineral > native elements and alloys > [noun] > native copper virgin copper1728 1728 E. Chambers Cycl. at Virgin Virgin Copper, is that which has never been melted down. 1796 J. Morse Amer. Universal Geogr. (new ed.) I. 167 Remarkable for the abundance of virgin copper. < as lemmas |
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