In blasting: a metal rod placed in the drill-hole during the packing of the charge, leaving when withdrawn a touch hole for firing. Cf. stemmer, n.1
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| 单词 | θ213033 |
| 释义 | society > occupation and work > equipment > equipment for working with other materials > [noun] > with explosives > for making hole through charge (4) pricker1747 In blasting: a metal rod placed in the drill-hole during the packing of the charge, leaving when withdrawn a touch hole for firing. Cf. stemmer, n.1 needle1838 Mining. A pointed metal rod used to make a hole in the tamping of a blast-hole. Now historical. stemmer1909 (See quot. 1909.) Subcategories:— hole made by (1) |
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