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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).影片由阿贝尔·费拉拉自编自导，该片曾入围2019年戛纳电影节参展作品BBC喜剧《我的妈啊 Motherland》第三季确定北京时间5月11日回归。新季共5集。What should I do if I encounter a bottleneck//038一个瘦小的肩膀，能够承受多少压力？一个垂垂老矣的女人，又能承受多少生离死别？人间有情，希望长存是“飘零燕”一剧所带出的主讯息。小孤女叶宝燕自双亲先后去世，一直与内地来港的祖母汤秀琼相依为命，岂料天意弄人琼因外失忆而失踪。自此，二人各自展开飘泊人海的孤苦生涯。她们在残酷的社会中挣扎求存，饱尝人情冷暖。她们虽然得不到命运之神的眷顾，但却从未想过放弃，一直奋勇于生命激流中，盼着重聚一天的来临……匆忙浮躁的都市中，四个与音乐相关的男男女女看似偶然般地邂逅了，他们分别是第一小提琴手卷真纪（松隆子 饰）、大提琴手世吹雀（满岛光 饰）、中提琴手家森谕高（高桥一生 饰）以及第二提琴手别府司（松田龙平 饰）。仿佛是对音乐的共同志向，他们组建了名为“甜甜圈洞”的四重奏乐队，暂时落脚于别府家位于轻井泽的别墅，过起了与世隔绝的人生。然而四个人终究无法超脱世俗存在，除了最基本的吃饭问题，每个人似乎都被各自的秘密所牵扯纠缠。其中雀与真纪“邂逅”的原因，恰恰正是因为真纪丈夫的不辞而别。往自己头上一罩，笑道：我当新娘子。