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firing line
(Scotland) An appliance used in former times for clearing a room of combustible gases. A prop was being set up near the face, a ring was fixed in it near the roof, and a cord or wire was passed through the ring. Attaching a lamp to one end of the cord, the miner withdrew to a distance, and by pulling the cord raised the lamp to the height necessary to explode the accumulated combustible gases.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)