| 单词 | tamping bar |
| 例句 | The cartridges are carefully rammed down by a wooden tamping bar and the remainder of the hole filled with tamping. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" The needle used in preparing a blast shall be made of copper, and the tamping bar shall be made of wood, or shall be tipped with at least five inches of solid copper. Mining Laws of Ohio, 1921 An obscure figure moved a heavy and faintly clanging pile of tamping bars. The Three Black Pennys A Novel This allows the dynamite to spread under the pressure of the tamping bar. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" This consists of finely broken rock, dry clay or other comminuted material, carefully compacted by the tamping bar on top of the charge. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" |
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