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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).大苞谷就像跟它心有灵犀一般，摸着它的脑袋跟它说话：你让我坐啊？不成，我现在长大了，你驮不动我了。他跟山芋似的，凭着一股子狠劲儿划了好长一段后，觉得划不动了，就想着：算了，不去下塘集了，长大了再去也是一样的。这有何罪？何永强美滋滋笑道：按当朝律法，朝廷官员禁止私自经商者，没收资产，削免官职。一把揪住他拖往隔壁屋子去了。黄飞鸿带领徒弟们去省城发展宝芝林，因误会与当地虎鲨帮结仇，并结识了鬼脚七，收其为弟子。黄飞鸿年轻气盛，致使宝芝林陷入危难之中，后因父亲黄麒英的“假死”，黄飞鸿心智转变，刻苦习武，立誓铲除虎鲨帮。Dutch students in Amsterdam accidentally open a portal to a demonic world from the Dutch Golden Age.