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核试验科教记录片。是自人类发明原子弹、氢弹以来的各种核爆炸记录，采访了许多美国参与核试验的专家，非常珍贵的第一手资料。著名的“小男孩”（广岛）和“胖男人”（长崎）就在这里，不可不看！ On July 16, 1945, at a site called Trinity, a plutonium bomb was assembled and brought to the top of a tower. The bomb was detonated, producing an intense flash and a fireball that expanded to 600 meters in two seconds. The explosive power was equivalent to 18.6 kilotons of TNT. It grew ...。《冰雪奇缘》讲述了一个永恒的故事，故事围绕着一对被一个神秘秘密分开的姐妹展开。一位年轻女子努力寻找自我，驾驭自己内心的力量，而另一位则踏上了一场史诗般的冒险之旅，决心一劳永逸地让家人团聚。姐妹俩都在寻觅爱，只是她们还不知道该去哪里找寻。。