| 单词 | charging spoon |
| 释义 | > as lemmascharging spoon charging spoon n. ΚΠ 1894 C. le N. Foster Ore & Stone Mining 161 The charging-spoon is a hollow half-cylinder of copper or zinc, at the end of a copper or wooden rod, which is used for introducing loose gunpowder into holes which are more or less horizontal. < as lemmas |
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