| 单词 | mineral tar |
| 释义 | > as lemmasmineral tar mineral tar n. now rare = maltha n. 2. ΚΠ 1796 R. Kirwan Elements Mineral. (ed. 2) II. 44 Mineral Tar, Barbadoes Tar. This is Petrol still further altered by exposure to the air. 1847 in Utah Genealogical & Hist. Mag. (1926) 17 122 About 1½ miles south we discovered a mineral tar spring. 1869 Proc. Amer. Philos. Soc. 1865–8 10 455 Maltha, or mineral tar,..is more nearly allied to tar..than to oil. 1894 Manufacturer & Builder Jan. 15/3 This mineral tar is intermediate between the light-bodied oils and the solid asphaltum. 1958 Econ. Jrnl. 68 314 (table) Mineral tar and related crude chemicals. 1978 Science 22 Sept. 1080/2 Syrian asphalt, which is also known as bitumen of Judea, is a naturally occurring mineral tar of high molecular weight. < as lemmas |
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