| 单词 | milling-ore |
| 释义 | > as lemmasmilling-ore ΚΠ 1870 J. C. Van Tramp Prairie & Rocky Mt. Adventures 643 The average cost of milling ores was $75 per ton. There were 36,000 tons of ore extracted in 1865. 1877 R. W. Raymond Statistics Mines & Mining 257 A large part of the ore is milling-ore. < as lemmas |
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