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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).}服刑期满后，他不但恶习未改，反而更加凶残。1985年6月,刚刚出狱,就伙同金林、张谨玉在西宁火车站商埸盗窃价值4万多元的冬虫夏草等中药材,在西安市销赃得1.8万元。为了避风,逃到河南许昌,在小饭馆为了争一条凳子杀死一人,重伤一人.在峨眉山因为琐事将张谨玉推下山崖.之后，他流窜到社会，纠集出狱的“难友”多次抢劫。打从一开始从韩国匆匆赶来关中，张良就没想过要离开刘邦自己活命。就在他准备继续码字的时候，手机突然响了。何永强接过酒杯，放在眼前端详片刻：从前，这种杯子，我连看一眼都不屑。