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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.《守护生命的故事》是香港电视广播有限公司制作的健康节目。　　其后叶问(杜宇航 饰)选择暂别师兄叶天赐(樊少皇 饰)，师妹李美慧(陈嘉桓 饰)引及由一众武馆师兄弟，独自到香港求学。当中，叶问更被外籍人士侮辱，歧视…… 其间，叶问遇上第二位咏春师父梁璧(叶准 饰)，梁璧乃咏春宗师陈华顺之咏春师父梁赞的儿子。叶问得梁璧传授各种咏春功夫，大大提升咏春水平。其后，叶问学业有成，返回家乡与佛山副市长的女儿张永成(黄奕 饰)相恋却Drug name: Sennae folium, Sennae fructus我不知道。一穷二白的网文写手申夏因为一场意外参演的真人秀，经历了一次永远也逃不出的循环“穿越”，不仅成为了现实版 “楚门世界”的亲历者，更在恶毒女配打怪升级的“反穿越”途中结识了追寻人生意义的富二代霸道总裁邡童，由此展开了一段追寻创作初心并收获真爱的甜蜜奇幻之旅。