一、极薄矿脉崩矿的特征—具有“夹制作用”(一)药包在介质中爆破时,周围介质所承受的破坏程度,视其与药包中心的距离远近而定。距离愈近则破坏作用愈大,愈远则愈弱。药包的破坏半 First, the characteristics of extremely thin veins collapsing - with “Clamping system ” (A) the package in the media blasting, the surrounding medium to withstand the extent of damage, depending on its distance from the center of the package determined. The closer the distance, the greater the damaging effect, and the farther away, the weaker. Half of the destruction of kits