| 单词 | ore hearth |
| 释义 | > as lemmasore hearth ore hearth n. now chiefly historical a kind of blast furnace for smelting lead ore. ΘΚΠ society > occupation and work > equipment > furnace or kiln > furnace > [noun] > furnaces for melting or refining metals > for roasting or calcining ores > for lead ore ore hearth1612 bole1670 Castilian furnace1875 1612 in W. Page Victoria Hist. Co. Somerset (1911) II. 372/1 No slagge hearthe shalbe sette on worke to beate anie oare hearthe..uppon paine of fortie shillings..for everie offence. 1825 ‘J. Nicholson’ Operative Mechanic 356 The smelting of the [lead] ore is performed by either a blast-furnace, called an ore-hearth, or a reverberatory-furnace. 1909 Science 5 Feb. 231/2 The treatment of silver-free lead ores in the ore-hearth and the reverberatory furnace. 2002 Northern Echo (Nexis) 26 Feb. 10 The scattered reminders of this vast endeavour—chimneys, flues, ore hearths, storage bays, tunnels, [etc.]. < as lemmas |
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