Fast-shooter is a kind of newest fast gunnery training instrument which was invented by the leading scholar of this subject and has already obtained the patent.

 
  • 摘要速射目标选择指示器是由该课题组负责人发明的一种最新的快速射击训练器械,已经获得国家专利。
今日热词
目录 附录 查词历史