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At that tail of the warhead, the drag armour-piercing firebomb is filled with a drag agent and a fireagent, Under the pressure of propellant propelling warhead, it will spontaneously ignite to produce open flame, So it can break through the oil drum and ignite or detonate the gasoline. However, the old-fashioned traced armour-piercing firebombs have obvious trajectories due to traced light when they are launched. Therefore, it is very easy to expose oneself while pointing targets to friendly forces. Therefore, the new tracer armour-piercing firebombs now equipped all start to burn and emit light only after the projectile flies out of the muzzle for a certain distance (the generally set safe distance is 100 meters, which makes it impossible for the enemy to judge the firing position with tracer ammunition, while targets within 100 meters do not need to be indicated by tracer), The principle is generally to ignite the tracer and combustion agent carried by the projectile by accumulating the heat generated by the warhead's friction with the air after flying for a certain distance to a certain extent.《请回答1994》以来自全国各地的学生们生活的首尔某寄宿店为背景，讲述从地方来的人们艰难的上京记，势必引起地方出身的人们的共鸣，让首尔的人们感到新奇有趣。该剧将展现这一时代人们的整体生活。离开生活了20年的家乡、为了上大学来到首尔的寄宿生们对首尔充满幻想，他们有趣的故事将为观众带去欢声笑语。而离开父母，独自在异地生活也会困难重重，感到孤独。这样的寄宿生们之间的友情一定会带给观众感动。特别是94届大学生的校园生活还会勾起人们纯纯的感性，篮球大赛加上徐太志与孩子们等风靡1994年的各种主题，也会刺激人们的感性。在此之前，先介绍一下清南村有数的人家儿女，也免得人物多了，容易混淆。影片讲述了一群加利福尼亚冲浪爱好者决定冒险开始追逐他们梦寐以求的好莱坞豪华生活。用先进的二手飞机从墨西哥飞行到加利福尼亚，同时带了大量的美沙酮。所有事都十分顺利，直到一个没有被证实真实身份的美女进入他们的生活后……2-3 0-2 3-0板栗沉吟道：我想起来了，大舅舅肯定不想招摇，又怕太简单了，所以外婆拿了这件如意来镇箱底。古朴而神秘的吴家村位于湘西雪峰山深处。村民敬神信巫，生活平静。