求翻译：文中以爆炸案件现场侦查措施工作中的几个关键性技术作为切入点，围绕近年来国内外出现的爆炸案件以及大量的文献资料和实验数据，在全面总结和研究的基础上，从爆炸案件现场中的未爆案件现场和已爆案件现场两个角度出发，重点对未爆案件现场中的爆炸装置处置技术和已爆案件现场的炸点、抛出物以及冲击波作用痕迹勘验分析方法进行研究。是什么意思？

Several key technologies in the explosion case crime scene investigative measures as a starting point, around the explosion of cases in recent years and a lot of literature and experimental data on the basis of a comprehensive summary and study case from the explosion site in two cases of unexploded

In explosive cases on-site detection measures in several of the key technology as a starting point in recent years, both at home and abroad around the bomb, as well as a large number of literature and experimental data, a comprehensive summary and on the basis of the study site, from explosions in c

In the article explodes in the case scene detection measure work several crucial technology to take the breakthrough point, the encompassment domestic and foreign appeared in recent

Text in the to explosion case site investigation measures work in the of several key technology as point, around in recent years both at home and abroad appears of explosion case and large of literature information and experimental data, in full summary and research of Foundation Shang, from explosi