| 单词 | hanging-wall |
| 释义 | > as lemmashanging-wall hanging-wall n. Mining = hanging-coal n. ΘΚΠ society > occupation and work > workplace > places where raw materials are extracted > mine > [noun] > part leaning over working hanging-wall1778 side-waver1849 hanging-coal1881 hanging-side1881 1778 W. Pryce Mineralogia Cornubiensis ii. i. 79 When the Miners dig down.., then the roof, i.e. the upper, the hanging wall, or incumbent wall of the Lode or Fissure, is..over their heads. 1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) II. 782 Hanging-wall..the rock which hangs over the lode. 1883 Standard 20 Jan. 1/5 The hanging wall is composed of granite. 1901 Daily Colonist (Victoria, Brit. Columbia) 31 Oct. 6/3 The quartz in the hanging wall here assayed £39.60 and that on the footwall £4.80. 1970 W. Smith Gold Mine iv. 9 Rod pondered the unfortunate choice of mining terminology that had named the roof of an excavation ‘the hanging wall’. < as lemmas |
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