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文章论述利用过期火药的一种新途径。在２号岩石铵梯炸药中加入粉碎的过期火药以代替部分梯恩梯，制成一种ＸＨ－Ⅰ型岩石铵梯炸药，适用于各种爆破工程。并具有较高的经济效益和社会效益。
The article discusses a new way to use expired powder. In the No. 2 rock ammonium thrill by adding crushed expired powder to replace part of the TNT, made of a XH-Ⅰ rock ammonium thrill, suitable for a variety of blasting. And has a high economic and social benefits.