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松动爆破漏斗爆破漏斗内的岩石被破坏、松动，但并不抛出坑外,不形成可见的爆破漏斗坑。此时 n loose0. 75。它是控制爆破常用的形式。当 n<, 0.75,不形成从药包中心到地表面的连续破坏，即不形成爆破漏斗。例如工程爆破中采用的扩孔〈扩药壶〉爆破
expl. loose blasting crater
松动爆破漏斗
tech. loose blasting crater

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