A type of medium caliber guns apply gun short-recoil automatic mechanism cycle regularity, and use advanced technique to achieve high fire cycle, high accuracy and light weight.
某中口径舰炮采用炮身短后坐式自动机循环规律，运用先进的技术手段，实现了高射速、高精度和轻型化。
The fatigue life and cumulative damage of ammunition feeding spring in automatic naval gun of medium calibre have been analysed.
本文研究了中口径自动舰炮输弹簧的疲劳寿命及损伤规律。
Firing method of medium caliber naval gun on targets at sea is an important study of firing command automation.
中口径舰炮对海上目标的射击方法是射击指挥自动化研究中的一个重要课题。
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