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field gun 野戰炮。

field hand

Derived from the 1929 fortress gun ( itself a development of the old 1897 field gun ) with a semi - automatic breech and an automatic loader added , the “ high power “ apx 75mm gun fired a mle 1915 he round with a reduced charge at 400 m / s and the mle 1915 ap round at 570 m / s ( 50mm penetration at 1000 m ) and its two sights and stereoscopic rangefinder allowed a direct fire range of 2000 m “大威力” apx型75毫米炮由1929型要塞炮(舊式1897型野炮的發展型)衍生而來,加裝了半自動炮尾和一個自動裝填器,發射減裝藥的1915型高爆彈(初速400米/秒) ,及1915型穿甲彈(初速570米/秒, 1000米距離可穿透50毫米裝甲) 。

Research on optimization of firing stability of field gun based on virtual prototyping technology and sensitivity analysis 基于虛擬樣機技術和靈敏度分析的地面火炮射擊穩定性優化研究