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本文叙述了采用硐空爆破开采不同粒径石料的过程，指出了开采碎石渣和特大块石时可采用的不同装药结构形式。
This paper describes the process of using different sizes of stone with empty blasting, and points out the different types of charge structures that can be used in the mining of gravel slag and extra large blocks of stone.