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单词 θ6401
释义
the world > the earth > minerals > ore > [noun] > metal ore > iron ore > specific shape (4)
ball-mine1702

(in Staffordshire) ironstone found as fossiliferous nodules; cf. ballstone n.

pipe ore1709

ore occurring in or as pipes (senses 18a, 18d).

ball veina1728

a stratum of iron ore containing nodules, formerly mined in Sussex.

kidney ore1750

hæmatite occurring in kidney-shaped masses.

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更新时间:2024/9/21 2:44:38