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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.In a tcp connection, Rst means reset, which is used to close the connection in case of abnormality. When the sending end sends rst message to close the connection again, it does not need to wait for all the datagrams in the buffer to be sent out, but will directly discard the data in the buffer and send rst message. Similarly, after receiving the rst message, the receiving end will empty the buffer and close the connection, and does not need to send ack message for confirmation.不对，那分明就是一个女人。鲜血飞溅，洞中数百人全都愣住了，只听见巴虎凄惨的呻吟声。田夫子目光骤然紧缩，放在膝盖上的手微微颤抖。正好原野这几天有事，只能晚上回来写字，每天只能保证一章，也顺便停住等结果了。