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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.Article 23 On-board motorized shipsWhen I think about this matter again, I feel that he is lucky in the real misfortune. He is more deadly than Jiang Yong in the position where he was splashed. However, due to the self-help measures taken and the help of some people, he was lucky enough not to be seriously injured in the end.The interface is more optimized and the operation is more convenient.咖啡厅店员Dương与好友去追星，意外撞见刚从浴室出来的偶像Nhật Nam，误会厘清后，两人又在咖啡厅相遇，Dương这回随意录下Nhật Nam来店的片段，并发文写下乱七八糟的情节，给Nhật Nam带来风波，两人的纠缠可是剪不断、理还乱，最后究竟会如何呢？"The waist was bitten off? Is the spine broken?" I asked.