单词 | mineral dresser |
释义 | > as lemmasmineral dresser mineral dresser n. a person or machine employed in mineral dressing. ΘΚΠ the world > the earth > earth sciences > geology > mineralogy > [noun] > apparatus mineral dresser1876 Jolly1882 meldometer1885 streak plate1895 1876 Engin. & Mining Jrnl. 22 188/1 Canfield's Mineral Dresser... At the Dover meeting of the Institute, Mr. F. A. Canfield showed some of the members a machine which he had invented for dressing mineralogical and geological specimens. 1957 Sci. News 46 35 This upgrading [of ores] is the work done by the mineral dresser. < as lemmas |
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