| 单词 | rock-fire |
| 释义 | > as lemmasrock-fire rock-fire n. now historical a hard incendiary substance that burns slowly and is difficult to extinguish, consisting chiefly of a mixture of resin, sulphur, and potassium nitrate. ΚΠ 1838 J. A. Dahlgren tr. H. J. Paixhans Acct. Exper. French Navy Trial Bomb Cannon 47 I cared so little..for any thing more than a proper knowledge of the principal facts, that I did not even put rock-fire in all the bombs. 1862 J. G. Benton Course Instr. Ordnance & Gunnery (ed. 2) vii. 375 The incendiary properties of pitched fascines may be increased by dipping the ends in melted rock-fire. 1961 Florida Hist. Q. 39 334 Convinced..of the difficulty of destroying or burning the forts or the buildings in the navy yard, at the extreme range, with explosive projectiles, the Federals this time used rock-fire and carcasses. < as lemmas |
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