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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.Reference: Dungeons and Warriors _ Baidu Encyclopedia沈悯芮抬头，露出了迷一样的微笑，而是你在分别的时候，才发现爱上了一个人。该剧以文学艺术手法再现了清河地区抗日武装起义的峥嵘战史，描写了性格坚毅的长山中学校长马耀南在日本入侵中国的民族危亡时刻，毅然投笔从戎，与侠肝义胆的二弟马晓云和内敛忠厚的三弟马天民自发组织当地师生和有志百姓成立抗日武装，在中国共产党的领导和帮助下，在一次次与日本侵略者英勇无畏的战斗中，队伍一步步发展壮大，从一支“大褂子军”逐步成长为我党清河地区纪律严明、作战英勇的抗日中坚力量——八路军山东纵队第三支队。马氏三兄弟也在战争的磨砺中成长为优秀的将领，被当地老百姓亲切地称为“一马三司令”。在与日寇艰苦卓绝的长期斗争中，马氏三兄弟在抗战胜利前全部壮烈牺牲，以身殉国，他们的名字和英雄事迹将永远铭刻在人民的心中。After decorator!　　当男主Anawin的前女友Veeanna（Donut 饰）即将成为女主Milin的后妈后，男女主有了共同的目标 ：男主Anawin为了打败这个侵占他心爱女人（即Veeanna）的男人，而女主Milin则为了报复选择新的妻子而拋弃了她的父亲 ，为此两大继承人达成合作开办新公司，携手假扮情侣，对抗报复女主父亲Pee（Sam 饰）。杨长帆心道，你真心疼我还何必让庞取义追倭？但脸上还是要愣头青的。