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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).该剧根据俄罗斯著名导演彼得·托多罗夫斯基的自传体回忆录改编，描写了1943年，一群年轻人在炮兵学院的90天学员生活。最重要的问题是，Rae Earl刚从一个特殊的地方回家——精神病院。但她答应了自己和妈妈一切都会好起来，她要勇敢的对面生活的爱情。究竟这个胖妹会带来一段如何经常的生活日记呢？[1]庞取义很有自信地摇头道，沥海这边，他们暂时还是不敢来的，绍兴、杭州可不是他们说来就来的地方。林聪想了一下，点点头，答应暂时不去为老将军诊治，先看看再说。The configuration of this game requirement is very low, and basically the home computer can be competent.泥鳅却是离得比较近。