As students ' family and friends remember those killed in the shooting of virginia tech , investigators have learned the shooter bought ammunition clips on ebay about 3 weeks before the attack 当学生们的亲朋好友怀念弗吉尼亚理工大学枪杀案遇害者时，调查人员已获悉枪手于案发前三周通过易趣网购买了弹夹。
As students ' family and friends remember those killed in the shooting of virginia tech , investigators have learned the shooter bought ammunition clips on ebay about 3 weeks before the attack 同学的家庭和朋友都记得那些在维吉尼亚理工大学被枪击的人，调查人员已经得知凶手实在枪击案发生3周前在易趣上购买了弹药匣子。
As students ' family and friends remember those killed in the shooting of virginia tech , investigators have learned the shooter bought ammunition clips on ebay about 3 weeks before the attack 正当在弗吉尼亚理工大学枪击事件中遇难的学生的家人和朋友缅怀死者时，调查人员发现凶手在案发前3周通过易趣网购买了手枪用的子弹夹。
According to chicago sun - times columnist michael sneed , authorities are investigating if the shooter was a chinese national who arrived in the u . s . last year on a student visa 今天发生在弗吉尼亚理工大学的特大枪案凶嫌身份初步认定：该行凶男子是一名持学生签证来美国就读的中国留学生，现年二十四岁。但警方称他不是弗吉尼亚理工大学的学生
Handloaded or reloaded ammunition deviating from pressures generated by factory loads or from component recommendations specified in reputable handloading manuals can be dangerous , and can cause severe damage to guns and serious injury to the shooter 手工枪弹和重装填的枪弹，如果违背了权威的装填手册，可能给枪支和射手造成严重的伤害。
As students ' family and friends remember those killed in the shooting of virginia tech , investigators have learned the shooter bought ammunition clips on ebay about 3 weeks before the attack 当学生的生的家人和朋友记住那些在弗吉尼亚理工大学因枪击事件而遇难的人时，调查人员已经获得实行枪击者大约在此事件发生之前3周的剪辑录影带作为证据。
The land operations division of australia s defence science and technology organisation （ dsto ） has developed an optical sight attachment for australian forces that allows the shooter to view and fire at targets from behind cover 澳大利亚防务科学技术机构的地面作战分部已经与澳大利亚部队开发了一种光学瞄准具附件，它能使射手在掩蔽物后面观察和射击目标。
Even a small bit of mud , snow , excess lubricating oil or grease in the bore can cause dangerously increased pressures , causing the barrel to bulge or even burst on firing , which can cause injury to the shooter and bystanders 即使极少量的泥沙、雪、过量的润滑油或油脂都可能导致膛内压力危险地升高，进而造成枪管鼓胀甚至炸裂，而这会严重伤害射手和旁观的人。
