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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).3. "Tail light" refers to a white light placed as close as possible to the stern of the ship, which displays uninterrupted light in a 135-degree horizontal arc. Its device shall make the light display from the right rear of the ship to 67.5 degrees on each side.3. Is the emergency response effective众人哄笑，板栗咳嗽一声道：我还没享福哩，你就说我折福了。"Lecture Room" 20160309 Poetry Love 6 Teach Your Majesty to Have Wanton PityMario RPG英国广播公司（BBC）制片厂喜剧主管乔希•科尔（Josh Cole）表示：“里斯和史蒂夫继续以越来越壮观和恐怖的方式创造和打破喜剧的所有规则，我们很高兴BBC给了我们机会再制作两部连续剧。套用这部剧本身的话来说，自从那只逃走的母牛之后，就再也没有过如此激动的场面了。“9号里面万岁！”