= barrier, n. 1g.
| 单词 | θ211935 |
| 释义 | society > occupation and work > workplace > places where raw materials are extracted > mine > [noun] > pillar or area of unworked material (16) forbar?15.. = barrier, n. 1g. pillar1591 Mining (chiefly Coal Mining). A solid mass of coal or other mineral, of rectangular cross-section, left in place to support the roof of a mine; = rib… whole1728 Mining. A seam or portion of coal or ore which has not yet been worked, or is in the earliest stages of working. Cf. sense A. 6d. Obsolete. stalch1747 A piece of ground left uncut though all around has been worked. post1793 Mining. A pillar of coal or ore left uncut to support the roof of a mine working. post and stall = pillar and stall n. at pillar, n. compounds 2. Now… stenting1812 (See quot. 1860.) rib1818 Mining. = pillar, n. 10. stook1826 Coal Mining. The portion of a pillar of coal left to support the roof. man-of-war1835 Mining. A pillar of coal left unworked to provide extra support, esp. in a thick seam. spurn1837 Mining. (See quots.) staple1839 Mining. A pillar of coal left as a temporary support for a superincumbent mass. barrier1849 gen. A fence or material obstruction of any kind erected (or serving) to bar the advance of persons… Coal Mining. ‘A breadth of coal left against an… shaft pillar1855 a body of coal or rock unworked in order to provide support for an adjacent shaft. barrier-pillar1881 (see quots.). stoop1881 Mining. (See quot. 1881.) stoop-and-room n. = pillar and stall n. at pillar, n. compounds 2. stump1881 Coal Mining. (See quots.) |
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