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So let's explain the rules of iptables in a common way. There was an analogy before, Each "chain" is a "checkpoint", Every message passing through this "level" must match the rules on this level. If there is a match, The message is processed correspondingly, For example, you and I are like two "messages" at the moment. Both of you and I are going to enter the customs at this moment. But the duke has a life, Only the imposing person can enter the customs, Those who do not meet this requirement are not allowed to enter the customs. So the soldiers guarding the customs followed the "rules" formulated by the duke. I began to look at you and me. In the end, you entered the customs smoothly, and I was rejected. Because you met the standard of "dignity", you were "released", while I did not meet the standard, so I was not released. In fact, "dignity" is a kind of "matching condition", "release" is a kind of "action", and "matching condition" and "action" form the rules.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.却见白马见他坐在地上，自己立刻收起架势，小碎步绕过看马人，这才扬长而去。而是为了完全灭亡暴秦，为他项羽看守关中，不为他人所窃取。大唐天宝年间，长安附近的一个小集镇，名叫鸡鸣镇。十八年前，段圭璋被安禄山大军包围，亲生儿子失陷乱军之中，而他的好友史逸如全家也都下落不明，经此一役，段圭璋心灰意冷，从此隐居在鸡鸣镇，不理江湖恩怨。在前往飞虎山路上，他们发觉河朔一带绿林大盗都在向飞虎山聚拢，原来是王龙客聚集绿林败类，要围攻绿林盟主窦令侃，一举铲除就在安禄山肘腋之间的绿林群豪。在一对一交手中，段圭璋碰到了精精儿的师弟空空儿，谁知轻敌战败，临走之前将自己剑法和破阵剑传给了铁摩勒。铁摩勒终于得窥高深武功门径。7岁的奥利芙，戴眼镜，小肚腩，做一夜成名的美梦，坚信自己有朝一日能当选美国小姐。爸爸，推销成功学课程的讲师，相信“世界上只有两种人，成功者和失败者”，四处贩卖他的“成功九部曲”；哥哥，自闭男，崇拜尼采，为了考上飞行学院发哑誓，九个月没有同家人说话；舅舅，自称是美国最好的普鲁斯特研究学者，同性恋，恋人和同事跑掉、失业，自杀未遂，生活混乱；爷爷，被养老院赶出来的老流氓，满嘴脏话、吸毒；妈妈，是这个疯狂家庭唯一正常的人。在家人的支持下，奥利芙参加了“阳光小美女”的选美比赛，一家人踏上了集体寻梦的旅程。奥利芙能否如愿当选？家庭成员们怎样才能度过他们各自的危机？加之许负的预言，薄姬的身份就显得愈发的贵重，所以他对此事一直耿耿于怀。