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WISP is the abbreviation of Wireless Internet Service Provider, and its Chinese name is: Wireless LAN Operator, which is called Wireless WAN Function in Wireless Router.The civil aviation pilots that the main question wants to ask should refer to 121 pilots, not to the civil aviation pilots including 91 navigable and 135 business planes in general. Then let's briefly talk about the skills and conditions here.门当户对的路堵住了，屈尊娶望族也堵住了，那就只有平民了。你玩挑拨离间，那咱就来一招釜底抽薪。讲述一个“高富帅”穿越千年后虎落平阳而后东山再起的传奇故事。全剧由两获“中国文艺星光奖”的原央视系列喜剧总导演张凯亲自操刀编剧并执导，众多实力与颜值并重的人气演员倾力出演。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.