An escape of inflammable gas through a fissure in a coal-mine; the fissure itself; a similar current of air escaping through a fissure in a glacier.
| 单词 | θ211924 |
| 释义 | society > occupation and work > workplace > places where raw materials are extracted > mine > [noun] > passage > for escape or draining of gas (4) blower1822 An escape of inflammable gas through a fissure in a coal-mine; the fissure itself; a similar current of air escaping through a fissure in a glacier. piper1883 Coal Mining. A small fissure in a coalface through which inflammable gas escapes. Cf. blower, n.1 4, feeder, n. 7c. Obsolete. rare. top-head1883 see quot. Subcategories:— escape of gas through (1) |
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