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单词 ore-ground
释义

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ore-ground
ore-ground n. Obsolete
ΘΚΠ
society > occupation and work > workplace > places where raw materials are extracted > mine > [noun] > ore mine
lodeworks1586
ore-ground1840
1840 T. Weaver in Trans. Geol. Soc. 5 2nd Ser. 31 The northern (ore-ground) inclines..at an angle of 16° from the horizon.
1855 Jrnl. Soc. Arts 27 July 621/2 The ore-ground or Swedish iron is now lower than it was when Government were the principal consumers.
1874 J. H. Collins Princ. Metal Mining (1875) viii. 53 Shafts are sunk until the ore-ground is reached.
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