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单词 θ6415
释义
the world > the earth > minerals > ore > [noun] > metal ore > alum ore (4)
alum earth1612

any of various earthy substances yielding alum or alumina.

alum slate1675

= alum shale n.

alum ore1725

an iron ore or iron-rich rock which contains substantial amounts of alum; spec. = alum shale n.

bing1815

spec. A heap of metallic ore, of alum; a definite quantity (8 cwt.) of lead ore.

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更新时间:2024/12/24 10:09:43