| 单词 | fast shot |
| 释义 | > as lemmasfast shot fast shot n. Mining (now rare) a charge of explosive that fails to disturb coal, ore, etc., in the way intended. ΚΠ 1846 W. E. Brockett J. T. Brockett's Gloss. North Country Words (ed. 3) I. 161 When a shot has discharged without disturbing the coal..it is said to be a fast-shot. 1919 Sci. & Art Mining 29 Nov. 130/1 If a hole is bored into the solid coal without the coal being undercut, the shot placed in such a position would undoubtedly be a fast shot. < as lemmas |
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