四、弹药性能特点在60年代初,各国陆军的步兵部队开始大规模机械化之前,为20～40毫米口径的自动炮提供两种基本弹型——榴弹和穿甲弹就足够了。榴弹(北约的名称代号为HE或HEI)用途广泛,可对付地面目标和空中目标,其破片和冲击波效应(有时补充以燃烧效应)能有效地攻击飞机、运输车辆和无掩蔽的部队。依所强调的效应可在爆破弹和杀伤弹之间进行选择。爆破弹具有大的装药量,较强的冲击波和大量 Fourth, ammunition performance characteristics In the early 1960s, various armed forces of the armed forces began large-scale mechanized before the 20-40-caliber automatic guns provide two basic shells - grenades and armor-piercing bullets is enough. Grenades (NATO’s name is HE or HEI) are versatile and can handle ground targets and air targets. Their fragmentation and shockwave effects, sometimes supplemented by combustion effects, can effectively attack aircraft, transport vehicles and unmasked forces. Depending on the effect highlighted, there is a choice between blast and kill. Blasting bombs have a large charge, a strong shock wave and a lot