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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.爾仔（吳肇軒飾演）女友茹可以（盧惠敏飾演）在法國工作假期計劃期間突然失蹤，爾仔守住可以留下的書店希望等對方歸來。及後書店生意每況愈下，爾仔為維持書店，於是接受好友拖羅（繆浩昌飾演）的意見，在書店開設「身後事務所」以增加收入，專責代處理逝者遺物，卻因此遇上亡魂，為死者解開心結。宋义冷冷道：可不是？让老夫率军救援，这不是为难人吗？我说吧，想去送死的自己去，何必拉上别人。当青春遭遇海滩，那就等于是遭遇激情。因为在面对一望无际的大海，美丽的海滩时，年轻人们激情澎湃的胸怀就象喷发的火山一样全部迸发出来，也会引出无数美丽浪漫的爱情故事……This post only said the superficial image, but did not lose the technical level, for example, why did you lift weights and squat lower and stand apart narrower?三个年轻人为了让他们的冒险频道增加更多的人气，去神秘的城市卡萨布兰卡旅行，却没有意识到它隐藏了一个可怕的秘密。