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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).1990年的北京，大院女孩李丽莉中考马失前蹄，一头栽进大人们谈之色变的三类校西四中学，在马厩改成的教室里，未来被判了死刑。发小王波不知为何也来到西四，成为李丽莉唯一的慰藉，然而之前意外结下梁子的胡同一霸赵磊，竟也分到了她的班级。面对赵磊的报复，永不服输的李丽莉奋起反击，与此同时，王波为了她故意考砸中考的消息传来，让李丽莉对王波产生异样的情愫。然而，当第一次心动变成心碎，唯一察觉她心事的却是死对头赵磊，那看似永无止境的幼稚争斗，不知不觉间竟暗暗涌动着双方都未曾料想的小情愫，温柔地抚平了成长带来的辛酸。温柔体贴的少女张静，油嘴滑舌的小跟班陈军，特立独行的转学生臧茉莉，李丽莉逐渐了解这些所谓“坏学生”的可爱之处，并在他们影响下，不断挣脱身上的道道枷锁，奔向这场看似‘前途无亮’，却又灿烂无比的青春。简单浏览一下《寻秦记》的书评区，陈启发现书友们、网友们和他想象中的差不多，都是被这种前所未有的穿越小说给震撼住了。21世纪初，在举国欢庆中国加入WTO之时，历史悠久的江南纺织名城龙州市却发生了严重的运河大面积工业污染事故，市长任杰被就地免职，几十家纺织企业被责令停业整顿，数千万纺织工人下岗失业，全市经济面临崩溃……Then let's talk about the method of distinction now.尹旭既然能这么说，那就证明他有这个办法。　　首先，男一号是自夸成婚率99%的朝鲜最棒男媒婆和汉阳热门男的【马勋】一角，由演员【金旻载】出演。无论顾客或男或女或老或少、身份或高或低，在恋爱、结婚、离婚和再婚等问题上全部都能帮忙办妥的【“花党”老大】。以俊美的外貌和出色的语言驾驭能力，洞察人心的铡刀般的预知力，比什么都敏锐的观察力和执着的调查来寻找最佳对象。