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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).[Editor's Note] Under the relevant policies of the new college entrance examination, the burden reduction order and the recent "Opinions on Regulating the Development of off-campus Training Institutions", quality education has been increasingly recognized by the market and parents. Among them, the cultivation of children's thinking is also highly valued. However, while the whole quality education is still in its initial development, the cultivation of children's thinking itself is also facing many challenges. 从小青梅竹马，元家和肖家也相处非常和睦。然而在一个元宵节的夜晚，萧父的烟花厂发生爆炸，萧父和在工厂工作的元母意外死亡，因为妻子的去世，元父元德隆恨透了萧百灵母女。尽管在元父元德隆强烈的反对下，萧百灵和元峰还是偷偷一直有来往。使徒行者卧底游戏，使徒行者2原班人马拍摄游戏综艺节目，TVB金牌综艺团队制作，TVB翡翠台10月播出The above operation actually adds two mirror axes in the horizontal and vertical directions to the graph.