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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).The main contents of this program:于是火炮不紧不慢架好，填弹上药，瞄准。人要有原则——要么让她，要么****。一位名叫Achira的外星人来到地球进行研究，看到一名遇到麻烦的女子并决定拯救她。 他的英勇行动让他在地球上搁浅了300年，因为他很晚才返回太空船。在他期待已久的离开前仅剩三个月，他遇到了女演员法拉达，并意识到她是多年前拯救的女人。 Achira会在发现自己对这位着名女演员产生感情后选择回到自己的星球还是留在地球上？（纳妾）三，进入展览馆与民同乐。《风火轮之五虎战车》（Hot Wheels: Battle Force 5）是一支由6名青少年赛车手组成的精英团队。他们开着五辆外表很酷，速度极快的赛车，而且随时准备投入战斗。这支队伍必须驾驶他们的车辆去打败迄今为止对地球威胁最大的敌人——野蛮掠食者汪达尔人和沙克带领的险恶的机器人军团。