155mm self - propelled gun - howitzer is the main battle sp gun at the beginning of the 21st century . its fire control system is the control center of the individual piece firing , commanding , operating and aiming . this weapon system is designed scientifically on the premise of the research of its operational application 155mm自行加农榴弹炮将是我军二十一世纪初的主战火炮,其火控系统是单炮自主射击、指挥及操瞄的控制中心,如何将这种先进的武器系统的潜力最大限度地发挥出来,取决于完美的战术运用与科学的作战指挥。