| 单词 | vanning shovel |
| 释义 | > as lemmasvanning shovel 2. The action or process of separating ore on a shovel. Also attributive, as vanning-action, vanning shovel. ΘΚΠ society > occupation and work > industry > mining > [noun] > excavating or dressing ore > dressing ore puddlingc1585 vanning1671 jigging1778 ore-dressing1837 mineral dressing1931 1671 Philos. Trans. (Royal Soc.) 6 2098 Vanning..is performed by pulverising the stone, or clay, or what else may be suspected to contain any mineral body, and placing it on a Vanning shovel. 1767 Philos. Trans. 1766 (Royal Soc.) 56 38 I employed a tinner dextrous in vanning (a way of breaking and trying ores, by washing them on a shovel gently with water) to try it in his usual way. 1778 W. Pryce Mineralogia Cornubiensis 223 This must be repeated, till it is cleansed from the rough gravelly parts, which may be known by vanning of it on a shovel. 1839 H. T. De la Beche Rep. Geol. Cornwall xv. 585 Great dexterity is exhibited by the tinners in the operation termed vanning. 1874 J. H. Collins Princ. Metal Mining (1875) i. 11 The same principle is at the bottom of the beautiful art of ‘vanning’. a1884 E. H. Knight Pract. Dict. Mech. Suppl. 920/1 The object throughout is..to imitate the vanning action of the miner's shovel. < as lemmas |
| 随便看 |
|
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。