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One last thing on this subject, The 7.62 mm traced armour-piercing firebombs fired by the 81-1 family, Although the name is a little long, But compared with ordinary munitions, The difference is still well understood: Tracing and burning are simple, Is to add two corresponding drugs, The armor piercing is to replace the steel core behind the bullet's brass back armor (also known as bullet head) with a harder tungsten alloy core with stronger penetration to hard targets. The latter is also the tail-stabilized shelling penetrator used on the third generation of modern main battle tanks (abbreviation: APFSDS) is one of the two main materials (the other is the notorious, highly radioactive depleted uranium penetrator core, The user country is mainly the United States, while China mainly uses tungsten alloy penetrators, Less pollution and better performance, The United States does not need to. First, the United States does not pass the standard of tungsten treatment technology. Far from the level of our country, Secondly, the United States is a tungsten-poor country. It also wants to fully use tungsten alloy bombs, But it can't be used, But as a nuclear Power, There is a lot of depleted uranium as nuclear waste, so depleted uranium is selected as a substitute. As for tungsten alloy and depleted uranium, after putting aside the key additional condition of radioactive pollution, the pure question of who is better in armour-piercing performance is not directly related to this article, so it will not be described in detail).武林兵器谱，江湖百晓生；飞刀称小李，千里惊鬼神！再现武侠巨匠古龙的飞刀外传，他是一个最强的江湖一流刀客，却也是一个最失意伤心的断肠人，就如同多情刀客无情刀一般，本身就是一个矛盾的组合，却又如此的吸引人。Shanxi Province　　那次我受伤了：分享你的伤心故事本剧由重庆重视传媒有限责任公司制作，人方晴执导，张舜尧、申泽华等演员共同出演。　　20岁的毕天高Tango，艺术天份高，性格散漫随和，是个没有脾气的男生。爷爷是个退休老师，老看他不顺眼，没点男孩子的样，不务正业，不学无术，但是奶奶最疼爱就是他。韩信摇头道：此事也我关系，若非我任性，项羽也不会趁机打压将军越王你。