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| 爆破作用指数爆破漏斗半径R与最小抵抗线W 的比值称为爆破作用指数 n。即 n = R/W; 爆破作用指数爆破漏斗半径 R 与最小抵抗线为W的比值称为爆破作用指数 n。即 n=R/W,参见 index of blasting effect | |||
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crater index : 3 phrases in 1 subject |
| Explosives and Explosive Ordnance Disposal | 3 |
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