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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).将于2021年月1月在美国网络上线。本季共9集，围绕幻视和猩红女巫的爱情和冒险展开。李敬文微笑道：这些都好吃。于是众人去了单独给生病军士设置的军帐。2009.8-20世纪少年：第三部 我们的旗帜本剧是《黄石》主创泰勒·谢里丹打造的新剧。故事发生在密歇根州的一个小镇上，这镇唯一主要行业就是联邦监狱、州监狱及私人监狱。聚焦小镇的McClusky家庭身上，他们在这取决于监狱及囚犯的镇上拥有无比权力，不管警察、罪犯、囚犯、狱警及政客都得看他们脸色。