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4.? Write Attack ProgramOne 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).No.19 Lin Youjia云海燕眼神一亮，十万字还不一定能看出小说的真实水准，但是三十多万字，那就足够了。该剧是一部悬疑黑色喜剧，讲述有想杀死的人的3个不惑之年女子的故事。咱村这一拨男娃儿，就数葫芦跟板栗拔尖儿，就跟他们爹当年一样。徐文长递上国书，说明来意，并且送上了金银布帛礼品的十分之一，以及在苔湾备好的西域产的宗教毯子、服饰。