| 单词 | day-hole |
| 释义 | > as lemmasday-hole day-hole n. Coal Mining the entrance to a day drift; (also) the day drift itself (cf. day eye n., and sense 23). ΚΠ ?1794 Trans. Royal Irish Acad. 5 279 There are three day holes, called Bear-mouths, where the men and horses go from the surface down a sloping cavern to the works. 1825 Gentleman's Mag. Jan. 77/1 Gosforth pit, which is about eighty yards in depth, and of considerable extent, is entered by what is called a day-hole, which proceeds under a hill, on a level with the surface of the ground, for upwards of 1400 yards, to what is called the shaft. 1892 Pall Mall Gaz. 11 Feb. 5/1 The coal is won by means of a day hole. 1905 R. W. Moore in J. Wilson Victoria Hist. Cumberland II. 352/2 Coal was first worked..to the rise, or along the level from ‘day-holes’ made from the outcrops. 2003 J. F. Richards Unending Frontier vi. 228 Where coal seams outcropped on the side of a hill, a tunnel, known as a day-hole or drift, could be driven horizontally into the hillside so that miners could simply walk or crawl directly into the hillside to reach the coalface. < as lemmas |
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