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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).学霸乖乖女陆七一（王子璇 饰）伪造录取通知书，欺瞒父母进入南方艺术大学，没想到，文化课的学霸很快沦为了艺术院校的奇葩。性格内向不善表达的陆七一，在这所艺术院校开始了艰难的升级打怪路。 不过，真诚善良的陆七一也受到了方岩（龚俊 饰）和杜昂（周澄奥 饰）两位男神的青睐。曾经与陆七一在艺考中不打不相识的方岩，似乎也越来越喜欢这个勇敢又有冲劲的女孩...皮姆（金伯莉·安妮 Kimberley Anne Tiamsiri Woltemas 饰）是含着金汤匙出生的千金大小姐，拥有着英俊的男友和一群感情十分要好的朋友。父亲的自杀让男友选择了离开，朋友们选择了背叛，父亲留下的遗产亦被邪恶的继母设计囊入怀中，霎时间，皮姆失去了一切。不会冷的，我天天早上都穿单衣练拳的。李由将军战死雍丘，是被项羽所斩杀，其他的家人则是被秦二世胡亥和赵高那个jiān贼所害，如今年老之时外孙还被杀了，老年丧孙可是巨大的打击。于是陈启的沉默，更加助长了这种言论。