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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).至于吗？他不悦地问。It can be traced back to thousands of years BC, and wrestling has been recorded in ancient civilizations of Japan, China, Greece, Egypt and other countries. Only for men.本剧讲述了一个二代农民工侯天明追求美好生活 的故事，通过他在北京和重庆的职场生涯来反映其追求梦想，向往幸福生活的主题，折射城乡差别、留守儿童、留守妇女、空巢老人、回乡创业等当今社会热点话题。该剧主题鲜明，思想积极，具有较强的现实意义，与国家新闻出版广电总局要求的“中国梦”主题电视剧创作方向高度一致，且“农民工进城”、“留守儿童”、“农村空巢社会”为近年来较稀缺的电视剧题材。本剧不是生硬图解“中国梦”，而是从小处着手，展现了在高速发展和变迁的社会中，一个外地草根青年在生活与工作、家庭与职场间所面临的现实困境和两难抉择。“M 'entends-tu ?这部戏剧喜剧将我们带进了Ada、Fabiola和Carolanne这三位生活在贫困中的老朋友不寻常的日常生活中。　　到达傅家庄之后，接二连三发生的事件引发了过去的恩怨情仇，小草的身世之谜也有了线索，今昔交织说不尽沧凉的悲欢离合，道不完可爱可哀的新仇与旧事……