大口径

• Key technology for reducing the weight of large caliber rotary antiaircraft machine gun
  大口径转管高射机枪轻量化关键技术
• Precise measurement system for reflectivity scanning of large aperture components
  大口径元件反射率的镜面扫描精密测量系统
• Large aperture lenses
  大口径透镜直径
• The waterworks used our large - size butterfly valves , check valves and so on
  水厂使用了公司的大口径法兰蝶阀、止回阀等产品。
• Study on the firing mechanism in large caliberrotating - barrels machinegun used by infantry
  步兵用大口径转管机枪击发机构的研究
• Primary analysis about several problems in design of large caliber self - propelled howitzer
  大口径自行火炮总体设计中几个参数问题
• Technique in construction of large diameter pile foundation of hukou bridge in karst stratum
  湖口大桥岩溶地层大口径桩基施工技术
• Large - diameter lens
  大口径透镜
• 3 . research how to depress the mode contention of large dimension rbwo
  3 、对如何抑制大口径rbwo中模式竞争问题作了初步的研究。
• Application of current change backseat device on heavy calibre soft - recoil haval gun
  电流变反后坐装置在大口径前冲舰炮上的应用分析