FIREARM OR REPEATING PYROTECHNIC MORTAR THAT ADVANCES CARTRIDGES FROM A MAGAZINE INTO A FIRING CHAMBER BY A CHEMICAL DETONATION OR STEAM EXPLOSIONJames M Powersmag（2010）引用 23|浏览15AI 理解论文溯源树样例生成溯源树，研究论文发展脉络Chat Paper正在生成论文摘要
