| 单词 | gas coal |
| 释义 | > as lemmasgas coal gas coal n. bituminous coal used in the manufacture of coal gas. ΚΠ 1827 Caledonian Mercury 11 June 1/3 There is coal in the lands, and, it is believed, also a seam of gas coal and fire clay, &c. 1898 Daily News 18 Apr. 11/5 More money has to be paid for steam, bunkers, and gas coals. 1961 Fowler's Mech. Engineer's Pocket Bk. (ed. 63) 180 Gas coals—These coals are black in colour, and are usually hard and dense, having a specific gravity of about 1.3. 1997 Fuel 76 565/2 Of the chars investigated, the most useful for the desulfurization of gases are those obtained from lower-rank coals, i.e. flame and gas coals. < as lemmas |
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