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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).However, when curiosity-inducing questioning methods become almost tricky, they often benefit little, and once customers find themselves cheated, your plans will all fall through.Every morning when I get up, thousands of messages pour into my cell phone.在20世纪70年代的辰英国，三个蓝领好友整天过着相互逗乐，喝酒，打架，泡妞的生活。弗雷迪（克里斯蒂安•库克）想离开工人阶级队伍，告别这样的生活方式。但是充满魅力的布鲁斯（汤姆•休斯）和可爱的失败者斯诺克（杰克•多兰）却很享受这样的幸福生活。而当弗雷迪获得了一份上门推销保险的推销员工作后，却在一天意外遇到了他旧时的老相好朱丽（菲丽希缇•琼斯），而同时，这个三人小团体也被迫抉择，是否要永远的改变他们当前的生活方式。另一方面，马修（杰森·席格尔 Jason Segel 饰）和莉莉（艾丽森·汉妮根 Alyson Hannigan 饰）惊喜发现莉莉怀孕了，这个新生命让他们既开心又紧张。巴尼（尼尔·帕特里克·哈里斯 Neil Patrick Harris 饰）则忙于挽回前女友诺拉，诺拉决定再给巴尼一次机会，于是他们重新在一起。罗宾（寇碧·史莫德斯 Cobie Smulders 饰）醋意大发，她发现自己还爱着巴尼……