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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.洪霆呆望着她。蒯彻觉得以自己的影响力，多少能够说动栾布。扬州画师郑板桥等众画友进京卖画，与宫廷御画师金敏之结怨。 　　乾隆慕惜日益崛起的扬州画派，微服南下扬州。南巡中乾隆为扬州画师的人品、画品所折服，并钦点郑板桥、金农京考，二人双双高中。但由于金敏之等佞臣作梗，二人不能入朝为官。一晃十年，郑板桥因破译了乾隆出的谜对而被任用为山东潍县知县。乾隆设"千叟宴"施恩天下名人雅士，"扬州八怪"均被邀进京，独不见郑板桥，乾隆龙颜震怒！潍县天灾水患，郑板桥开仓放粮，在抗旨上又添了一条死罪。金敏之又进谗言，但乾隆临乱思辨反将其贬为庶民。官场离乱，郑板桥思前想后写下了"难得糊涂"四字流芳民间……See Appendix A of GB16408.3 for medical history collection, examination methods, result evaluation and disease identification.秦旷冷静下来，苦涩道：可是孩儿已经连正妃都娶了。在一所艺术学院表演系一名二年级的学生蔺子默总是被比自己第一年级的花痴学妹宫小略纠缠，蔺子默在百般躲避中发现了自己的身世之谜和与宫小略的前世情缘。由于阴谋和爱情交织在一起，构成了千年前的一段迷情，前世身为魔界一族的宫小略无可救药喜欢上蔺子默，前世的情缘，今生注定纠葛。