用“PETN”造句大全,PETN造句 国语站 造句 1.21W 大中小设置文字大小 文章研究了硼系高能点火*对peTN燃烧转爆轰的影响。The process of decreasing the acid value of the booster pellets used semifinished PETN was studied by the exploring test in lab, the mini test and the medium test on the production line. TAG标签:造句 PETN #