Recently air-cushion blasting with column charge has been widely used and gained remarkable results in improvment of fragmentation and controlling damage.
近年来条形药包空腔爆破的应用范围有了一定的扩展，并且在提高爆破效果和控制爆破危害等方面取得了显著效果。
Recently air-cushion blasting with column charge has been widely used and gained remarkable results in improvment of fragmentation and controlling damage.
近年来条形药包空腔爆破的应用范围有了一定的扩展，并且在提高爆破效果和控制爆破危害等方面取得了显著效果。
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