At the same time , contacting with the blasting effectiveness , the view of sleeting the mechanics model as the brick - concrete chimney is demolished by directional blasting is suggested .
以分析、计算结果，文章对本次爆破所设计的切口圆心角进行了评价，并结合实际爆破效果，对砖混结构烟囱定向倾覆时的力学模型选用，提出了建议和看法。
sleeting