| 单词 | tripoli |
| 例句 | Filling materials used are sodium silicate, or water glass, talc, silex, pumice, starch, borax, tripoli, etc. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Rub it up and down the first of these grooves, containing emery powder; and then, to give it its final lustre, repeat the same process, with tripoli and oil, in the second groove. A Treatise on Etching He does not get a wheel with tripoli, or emery, or buff. From Sea to Sea Letters of Travel They contain in their outer coat or case a relatively large portion of silex, and their remains here and there form deposits—vast beds many feet in thickness—known as "tripoli," and used for polishing. The Contemporary Review, Volume 36, September 1879 On a lap of wood, tripoli would fail to polish hard materials, but would polish amethyst or other quartz gem. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public Many substances are incorporated with soap, such as salt, soda ash, tripoli, crushed volcanic deposits, ground feldspar, infusorial earth of various kinds, silex, etc. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. It is the chief ingredient of sand, sandstone, quartzite, chert, diatomaceous earth, and tripoli. The Economic Aspect of Geology Fish and insects, which are frequently found in strata of tripoli, which lie under sulphur beds, induce the belief that lakes formerly existed in Sicily. Scientific American Supplement, No. 647, May 26, 1888 In this case, even if the deposit appears dull, but not gray, it may be easily polished by tripoli and water, using a cork as the polisher. On Laboratory Arts Thus, when backed by a fairly hard metal even tripoli, although much softer, will polish sapphire. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public The addition of a little tripoli greatly facilitates the cleaning. Handwork in Wood Primrose should try a little tripoli and water upon the surface of the table. The Girl's Own Paper, Vol. VIII, No. 357, October 30, 1886 Upper Miocene.—Calcareous marl; gypsum, etc.; sulphur embedded in calcareous limestone; silicious limestone; tripoli, containing fossils of fish, insects' eggs, etc. Scientific American Supplement, No. 647, May 26, 1888 The active constituent of all metal polishes is generally chalk, rouge, or tripoli, because these produce a polish on metallic surfaces. Handbook on Japanning: 2nd Edition For Ironware, Tinware, Wood, Etc. With Sections on Tinplating and Galvanizing The polishing of stones, whether cabochon or facetted, is accomplished by the use of very finely powdered abrasives such as corundum powder, tripoli, pumice, putty powder, etc. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public They may then be polished on a clean buffer without tripoli. Handwork in Wood Continue the process till, on removing the tripoli with a clean pellet, the plate exhibits a clear, smooth, bright surface, free from all spots, or scratches. History and Practice of the Art of Photography The greater number of operators, with whose practice I am familiar, use, for polishing plates, prepared tripoli, imported from France, or Browne's rotten-stone. American Hand Book of the Daguerreotype When dry it must be rubbed with fine tripoli. Enquire Within Upon Everything The Great Victorian Domestic Standby Or, the powdered tripoli may be mixed up with a little pure oil, and used upon a ball of serge, or of chamois leather, which is better. Young's Demonstrative Translation of Scientific Secrets The best method of removing rust and tarnish is to polish the tools on a power buffing wheel on which has been rubbed some tripoli. Handwork in Wood When this is thoroughly accomplished, mix a portion of your tripoli with the dilute nitric acid, to the consistence of thick cream. History and Practice of the Art of Photography The polishing may afterwards be completed with a bit of serge or cloth, without tripoli. Young's Demonstrative Translation of Scientific Secrets |
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