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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.因为开掘地宫的进程困难重重，儒雅的李清源逐渐有了改动，他变得言不由衷、不择手段，乃至撒下弥天大谎。谎话结尾幻灭，李清源妻离子散、声名狼藉。其实，这一切都是化身为考古所杂役的世界级富豪陈可凡故意组织的，他要戳穿李清源的虚假嘴脸，只为给爸爸报仇。在俄罗斯的王位上唯一的女人，她的荣耀是活了几个世纪。没有更多的关于任何人的童话和神话，没有更多的谣言-但她真的是什么-皇后，俄罗斯不是根据血液，而是根据自己的意志？电影“叶卡捷琳娜”。“起飞”将打开一个最令人兴奋的一页，一个可爱的女人和伟大的皇后的生活。On the contrary, if such system data structure objects are easy to change and new data objects are often added, it is not suitable to use visitor mode.I hope you and I grow up together, walk slowly, and eventually see the rainbow of your life!田遥这是知道红椒的心意了。