| 单词 | foot blast |
| 释义 | > as lemmasfoot blast foot blast n. now historical a blast furnace which uses foot-operated bellows; the blast produced by such bellows. ΘΚΠ the world > matter > gas > air > moving air > [noun] > a movement of air > a blast or puff of air > artificially produced > produced by (foot-) bellows foot blast1622 bellows-blast1674 1622 G. de Malynes Consuetudo 273 Vent..for the Litargium..as it is cast vp by the Foot-blast. 1686 R. Plot Nat. Hist. Staffs. iv. 164 Our Ancestors who made Iron in foot blasts or bloomeries, by Mens treading the bellows. 1778 T. Pennant Tour in Wales I. 64 The Romans knew only the weak powers of the foot-blast. 1950 A. L. Rowse Eng. of Elizabeth (1951) 130 Smelting lead-ore in furnace worked by a foot-blast. 1989 D. Kiernan Derbyshire Lead Industry in 16th Cent. v. 188 The simple construction of the footblasts enabled them to be moved to different sites. < as lemmas |
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