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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).王穷见香荽满脸恳切地等大伯回答，忍不住轻笑起来，这个小丫头……王尚书如何不知香荽的用意，沉声道：本官会如实向皇上奏明实情。随着同学们进入电影院，诡异的现象开始接连出现不断，同学们陷入恶鬼的陷阱，开始亡命之夜……本片四个小主人公都是中学生，因为迷恋网络而发生了一些故事。四个主人公出身于不同的家庭，他们的家长有商人、也有停车场的收费工，家庭背景不同，但是每个家庭都存在自身的问题，归根结底是家长与孩子的沟通出现了问题。当家长真的发现问题的严重性时，才开始思考自己对孩子的忽略……内战期间，国民党反动派在全国各地大规模抓壮丁以扩充兵源。在四川龙隐乡，一幕幕由抓壮丁引发的故事接连上演——“天下第一保”王保长（李保田饰）欺上瞒下，中饱私囊；管区征兵工作队卢队长横征暴敛，强占民女，无恶不作；流氓无产者潘驼背（刘亚津饰）为虎作伥；土老肥李老栓（王大安饰）被迫将三儿子送去当童子军；善良正义的三嫂子（侯继林饰）不得不对王保长笑脸相迎；等待出嫁的幺妹子（谢润饰）无奈之下推迟婚期；雇农姜国富被逼死荒野……兰儿便赔笑道：这位公子还请留步，让两位姐姐陪着进去就好了。长久维持。