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| 炮孔塞在一定长度的炮孔内，用于堵塞炮孔以固定药包的材料。孔塞通常由木材、塑料、膨胀轮胎、气袋、沙包等材料制作。多层面气袋是一个自膨胀气袋,适用于75 borehole 400mm 不同尺寸的炮孔,稀释盐酸和重碳酸盐反应生成 CO₂ 而使气袋膨胀。它们也可用于分隔药包或产生空气层 | |||
| 钻孔土样 | |||
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borehole plug : 2 phrases in 1 subject |
| Explosives and Explosive Ordnance Disposal | 2 |
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