| 单词 | colophony |
| 例句 | There followed the production of a somewhat different form of match, sticks first dipped in sulphur, and then in a composition of chlorate potash, sulphur, colophony, gum of sugar, and cinnabar for coloring. Inventions in the Century 2011-07-20T02:00:14.643Z Ordinary resin, or colophony, consists chiefly of a monobasic acid having the empirical formula C20H30O2, known as sylvinic acid, whose exact structure is not known. The Chemistry of Plant Life A mixture of colophony, black pitch, and tar. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. Copal, mastic, guaiacum, and colophony or pine resin, are some of them. The Gutenberg Webster's Unabridged Dictionary Section R The most celebrated resin bears the name of mani; and of this we saw masses of several hundred-weight, resembling colophony and mastic. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 If a thicker consistence is desired, a greater proportion of colophony is added, and it is cast in moulds. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. |
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