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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).大唐初年乃中国历史上最为兴盛的历史时期，明群贤相，政治清明，尤其是天宝年间的贤相房玄龄更是为后世景仰，然而他却有一个被人诟病的话题：怕老婆！全父王心愿……再后来，马踏北疆，收服异族，开创安国……他说得很吃力，便停了一下，歇了口气。This is the thinking of the poor-ignoring the major changes that may or will happen at any time around them.　　某日，两人于无疑之中盗取了江湖奇书《长生诀》，殊不知这本其貌不扬的小册子正是江湖中人人争相抢夺的秘籍宝典，而寇仲和徐子陵亦因此而遭到了宇文化及（尤勇 饰）等人的追杀，生死存亡之际，半路杀出的神秘女子傅君婥（朱茵 饰）救下了寇仲和徐子陵，之后，同样是为了保护两人，傅君婥不幸惨遭毒手。悲痛的寇仲和徐子陵决心苦练武功，为傅君婥报仇。Action: