| 单词 | emmons, s. f. |
| 释义 | Emmons, S. F.Emmons, S. F. (Samuel Franklin)(1841–1911) geologist; born in Boston, Mass. He served the U.S. geological exploration of the 40th parallel, then became a geologist for the newly created U.S. Geological Survey (1879–1911). He made major contributions to studies of mining and the origin of ore deposits. |
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