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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.小娃儿听了就当真，就惹出祸来了。"I think (claim). Because (according to A), (according to B), (according to C)."杨长帆只好尾随于狼兵之后，登了船狼兵立刻分为左右两股，沿着甲板清剿。张无忌走进关押谢逊的石洞，黄衫女子把她从周芷若怀中取出的包裹，扔给张无忌，说道：张教主，屠龙刀和倚天剑就在你们曾待过的小岛之上。Address: Room 2117, Yingjia Building, 369 Zhongshan South Road, Nanjing (Gate 3, Sanshan Street, Metro Line 1, diagonally opposite the Provincial Communications Department)一个少年忽然大叫道：看。