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尹旭木然道：客气。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).二十世纪初，随着清王朝的灭亡，大批宫中珍宝流落民间。北洋政府统治无力，导致外敌内贼纷纷觊觎，国家宝藏危在旦夕。强情节动作大戏《迫在眉睫》讲述的就是在这一时期，民间有志之士为保护能够找到象征中华文明的六十四卷《永乐大典》的寻宝图，自发成立了民间护宝组织“舞沙”，与日、美、法等外国列强恶势力展开激烈斗争的传奇故事。谢谢了。首先，这些日子《回家》的更新，真的不能用一个渣字来形容了。1990年，韩国总统卢泰愚发起“与犯罪的战争”，在釜山警方的严打中，黑帮幕后人物崔翼贤（崔岷植 饰）因拘禁企业家落网，由此揭开了他游走于黑白两道的传奇故事……1982年，时任监督科公务员的崔翼贤在肥的流油的海关如鱼得水，但上司在遭到举报之际将崔翼贤推出背黑锅。前途晦暗的崔翼贤孤注一掷做起对日的毒品生意，得以结识了同族的黑帮大哥崔炯培（河正宇 饰），以崔氏望族出身自豪的崔翼贤很快与崔炯培结为同盟。二人凭借各自的人脉和暴力，在釜山的黑道世界创出天地。1985年，崔翼贤受企业家所托，入股夜总会与崔炯培里应外合将釜山黑帮头目金坂虎扳倒，崔氏黑帮蒸蒸日上之时，翼贤与炯培的关系，在混乱的时代洪流中出现了裂痕……