【摘要】 本文介绍饰面石材开采周边爆破的原理、特点和方法。如何根据不同矿体赋存条件和结构、构造进行炮孔布置的开采方法更多还原

【Abstract】 The cssay introducc the mcchanism, charactcristic and way of rccover faced stone’s periphery blasting. At the same tine it also introduce the recover way of assign borehole on the basis of different ore deposits conditions and structures.更多还原