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You have the right to judge yourself as a stupid ordinary person. I mean to remind you that as long as you have a definite goal, doing anything at any time will not hinder or even help thinking and research. They think they have wasted their time, but they have not actually wasted it.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).　　金多美饰演赵以瑞，她是有着神赐予的头脑的“高智能”且具备独特魅力的人物，是SNS明星也是网络影响力人物，具备天使般的外貌和反转性格。她和朴塞路因为恶缘而结缘并一起在梨泰院发展。原名为《家有阳光》的现代都市家庭情感剧《儿女冤家》围绕当代社会热点话题“啃老族”现象而展开，讲述家庭生活中父母与儿女之间微妙情感的家庭伦理剧。其中，“母亲”张凯丽、“女儿”黄小蕾和“媳妇”吴晓敏组成当代家庭新格局，三个女人一台戏，上演了一出与“亲情”密不可分的家庭战役，让故事悲中有喜，笑中带泪。矛盾重重过后，这些儿女冤家是否能从中感念母恩？该剧以一个崭新的诠释手法，尽情演绎邪恶与正义、阴谋与权术、智慧与狡诈的较量，将权利之争中的权术谋略；良将与奸臣的斗智斗勇，情感与权势的灰色交易；平民意识与皇族条规的反差、平民意识与皇后娘娘的错位展示的淋漓尽致，令人开怀、捧腹、惊奇、瞠目……