| 单词 | patent fuel |
| 释义 | > as lemmaspatent fuel patent fuel n. fuel in the form of briquettes or blocks made by compressing and shaping crushed coal, with added binder if necessary. ΚΠ 1851 Harper's Mag. Dec. 141/2 The Hicockolorum, or Patent Fuel, warranted never to smoke, smell, decrease in bulk, or throw out dangerous gases. 1921 Dict. Occup. Terms (1927) §091 Charge man; (i) (patent fuel) is in charge of operations in manufacturing patent fuel. 1987 Jrnl. Econ. Hist. 47 526 Coal was used commercially for burning, for distillation (to produce coke, gas, patent fuels, and chemicals), and for smelting. < as lemmas |
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