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I nodded at this passage, Understand that what Zhang Xiaobo said is indeed reasonable, It is not a lie, Here I think it is necessary to give you one thing about popular science. So we have to say something digressive: The result of a real bullet hitting a petrol tank is not the same as that shown in most movies. One shot can explode the petrol tank, But this is not the case, Although a pure metal projectile will rub against the air at a speed of hundreds of meters per second to generate equivalent heat, And will produce sparks after hitting the metal oil drum, But none of this is enough to ignite petrol, Especially for gasoline with a large total amount, to ignite gasoline, please remember one thing-open flame must be used. In addition, gasoline is a flammable item, but it is not an explosive item in the true sense. Only after reaching a certain total amount can explosion be caused. If the total amount is insufficient, it can only cause combustion without explosion.6. Data preprocessing, feature engineering and model training.1. Improper site selection and unprotected water resources, and there was nothing I could do in the face of this year's drought. One of my uncle's families planted more than 20 mu of rice and collected more than half of it. In those days, I inquired everywhere about buying a sprinkler for emergency. In the end, even if I bought a car, I had no place to pump water. It cost a lot of money to pump water and burn oil. In the end, I did not necessarily save my life. Finally, I had to give up.著名纪录片导演肯·伯恩斯的越南战争纪录片，于2017年在美国PBS电视台播出，共10集，总时长有18小时，采访了来自各方的近80名亲历者，既有参战与反战的美国人，也有南越与北越的军民。本片历经十年制作，跨遍全球搜集资料，其中有许多少见和重新数字化的影像档案，还有20世纪最为出名的摄影照片和家庭影视，以及历史新闻片段和政府内部的秘密录音。天启……云海燕咬牙切齿，牙缝中吐出两个字。This Break