“heel of a shot”的概念、定义、翻译、参考文献-科学参考

单词	heel of a shot
释义	heel of a shot [`hēl ǝv ǝ `shät] ^ENGINEERING 1. In blasting, the front or face of a shot farthest from the charge. 2. The distance between the mouth of the drill hole and the corner of the nearest free face. 3. That portion of a drill hole which is filled with the tamping. ^{MINING ENGINEERING} That portion of the coal to be fractured which is outside the powder.
随便看	universal joint universal language universally attracting object universally repelling object universal mill universal motor universal object universal output transformer universal plotting sheet Universal Polar Stereographic Grid universal product code universal quantifier universal receiver universal recipient universal resonance curve universal robot universal sequence universal set universal shunt universal stage universal time universal time 0 universal time 1 universal time 2 universal time coordinated

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