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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.不是……我几个月没进过她的房，再这么拖着父母就要推我进去了。Command Mode:　　反腐题材英剧《重任在肩》第六季于2017年5月获得预订，预计将于2021年在BBC1播出。本季的调查对象将是由Kelly Macdonald饰演的Joanne Davidson总督察，她在侦破一起谋杀案的过程中因采取了脱离常规的调查手段而引起了AC-12的注意。据主创Jed Mercurio透露，这个角色将会是AC-12所面临的最为神秘莫测的对手。现在这种局面自己相当的被动，如今只能是人家说什么就是什么了。这是……他发出一声尖叫，墙壁上镜子竟然映照出一个陌生人的摸样。