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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).But you can't say that, I am a tiger, you are Aquarius, we have nothing in common, this is a mistake, because the dimensions are different.As long as there is a definite goal, doing anything at any time will not hinder thinking and research, or even help thinking and research. They think they have wasted time, but in fact they have not wasted it.以反应都会生活真实情态为旨的单元剧《求婚事务所》，七个单元各自是八段人生与爱情的切片，不仅题材新颖，每单元的卡司更是坚强，具有爆炸性的话题，整剧由“求婚事务所”串连，固定演员包括钱韦珊、唐治平、黄嘉千、关勇、钮承泽、李康宜等。 　　第一单元《麻雀变凤凰》 　　第二单元《恋恋风尘》 　　第三单元《情书》 　　第四单元《毕业生》 　　第五单元《致命的吸引力》 　　第六单元《克拉玛对克拉玛》 　　第七单元《你是我今生的新娘》(two) the establishment of a collective bargaining and negotiation mechanism with designated medical institutions, and the signing and performance of service agreements in accordance with the law;至于那么不长眼的联军将领和士兵，用不着自己动手，他们的死期也就到了。板栗故意叫屈道：妹妹，我是你亲哥。