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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).故事讲述13岁的凯拉（艾尔西·费舍尔 饰）在初中的最后一周，所经历的青春故事...梁国洛城是一座商业之城，在其中有两大商业家族，蒋家和程家。蒋家东家蒋大虎与程家东家程青两者在读私塾时便一直是死对头，如今两者之间的商业竞争更是让斗争关系不断加剧。但蒋家千金蒋洛云、程家少爷程天琦、秦家少爷秦旭三人却是青梅竹马，长大后秦旭去到京城，蒋洛云与程天琦更是相恋，成为大家眼中的神仙眷侣，而他们的恋情被双方家人知道后，纷纷不许他们交往。蒋洛云被锁在家里，在侍女张琪琪的帮助下成功逃离，与程天琦准备私奔。A1.3. 1 Neurotic tendency: If the symptoms are mild and easy to recover, the psychological test results are excellent (above the average score) or the flight results are excellent, and the symptoms return to normal and qualified after exercise or correction.这部纪录片的编剧、导演和旁白均由沃纳·赫尔佐格（Werner Herzog）来担当，记录了他与剧组前往南极洲拍摄当地生物、居民以及独特地理风貌的历程。这部纪录片并不是一部关于南极著名的企鹅的影片，而是去探索南极的人类生活，以及壮丽神奇的南极洲美景。他们前往由美国国家科学 基金会南极计划部门运作的南极洲最大的科学研究中心——位于罗斯岛的麦克默多站进行拍摄，在当地采访了一些在作业、后勤、IT和维护等方面提供支援的成员后，他们陆续前往海豹基地、潜水营地等南极洲人类扎营的地点，沿途遇到很多有意思的人，做了很多包括细胞生物学家塞缪尔·宝泽（Samuel Bowser）、动物学家占·保罗斯基（Jan Pawlowski）、企鹅研究学者大卫·安利（David Ainley）等在内的简短访谈。在某种程度上，他们拍摄探索的并不在于展现科研领域，而在向大众揭示一种独特的生命体验。果然，很快就有一个小女娃划不动了。也许刚被一场大火熏过的缘故，李副将多了心眼，派了一小队人大作声势地往前走去，自己却带人远远坠在后边。