| 单词 |
heel of a shot |
| 释义 |
heel of a shot heel of a shot[′hēl əv ə ′shät] (engineering) In blasting, the front or face of a shot farthest from the charge. The distance between the mouth of the drill hole and the corner of the nearest free face. 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. |
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