英语词汇“bottom coal”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

bottom coal n. (a name for) the lowest deposit or stratum of coal in a coalfield; (also) coal in or from the lowest workings of a mine or the lowest part of a seam.

ΚΠ

c1640 T. Gascoigne in G. Redmonds Vocab. Coal Mining Yorks. (2016) 20 There is two rowes of bottom cole, and one rowe of hardband to be gotten.

1665 D. Dudley Mettallum Martis sig. D5 Many measures of iron-stone are placed together under the great ten yards thickness of cole, and upon another thickness of coles two yards thick,..called the bottom-cole.

1799 R. Townson Tracts & Observ. Nat. Hist. & Physiol. 173 Bottom Coal, called in the other list Flint Coal.

1859 J. B. Jukes Mem. Geol. Surv. S. Staffs. Coal-field (ed. 2) v. 24 In the Bentley district the Bottom coal is still looked upon and worked as one seam, even when the central parting is several feet thick.

1862 Trans. North of Eng. Inst. Mining 10 188 The bottom coal being drawn out in the right hand stall,..the next operation is to begin to cut the ‘top coal’.

1900 Daily Express 28 June 7/3 There is an immense quantity of coal known locally as ‘bottom coal’ practically intact.

2013 C. J. Bise Mod. Amer. Coal Mining ii. 40/1 Top cutting..or cutting just above the low-quality bottom coal are widespread practices in some areas.

单词	bottom coal
释义	> as lemmas bottom coal bottom coal n. (a name for) the lowest deposit or stratum of coal in a coalfield; (also) coal in or from the lowest workings of a mine or the lowest part of a seam. ΚΠ c1640 T. Gascoigne in G. Redmonds Vocab. Coal Mining Yorks. (2016) 20 There is two rowes of bottom cole, and one rowe of hardband to be gotten. 1665 D. Dudley Mettallum Martis sig. D5 Many measures of iron-stone are placed together under the great ten yards thickness of cole, and upon another thickness of coles two yards thick,..called the bottom-cole. 1799 R. Townson Tracts & Observ. Nat. Hist. & Physiol. 173 Bottom Coal, called in the other list Flint Coal. 1859 J. B. Jukes Mem. Geol. Surv. S. Staffs. Coal-field (ed. 2) v. 24 In the Bentley district the Bottom coal is still looked upon and worked as one seam, even when the central parting is several feet thick. 1862 Trans. North of Eng. Inst. Mining 10 188 The bottom coal being drawn out in the right hand stall,..the next operation is to begin to cut the ‘top coal’. 1900 Daily Express 28 June 7/3 There is an immense quantity of coal known locally as ‘bottom coal’ practically intact. 2013 C. J. Bise Mod. Amer. Coal Mining ii. 40/1 Top cutting..or cutting just above the low-quality bottom coal are widespread practices in some areas. extracted from bottomn.adj. < as lemmas
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> as lemmas