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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).陈启微笑着摇摇头。最好的武侠？就你写的小说？老人头都没有抬，淡淡说道。(two) the qualification is cancelled according to law, continue to engage in social fire technical service activities;Against Diluda (Comic 31)《我们的家园》是一部52集动画片，讲述了在一个茂密的森林中居住着红蚂蚁和白蚂蚁。小蚂蚁蒙蒙贪吃贪睡，特别是见了花生米就什么都忘了，有了麻烦总是让两个哥哥乐乐和丁丁挡着。他学习上的主意少，其它的点子却特别多，连欺负小孩的一个青年大飞都怕他三分……嘟嘟和哇哇是一对姐妹，但性格却截然不同，妹妹是个小书呆子，胆小，成开沉浸在书本之中，最爱说的一句话就是：“书上说的……”而姐姐哇哇则是个外向的小女孩，她总是认为自己什么都懂……另有王金永和BEYOND演唱歌曲。