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原子弹：１９３９年底，美国政府组织了几千名科学家和几十万名工人，在不到一个月的时间生产了足够制造一枚原子弹的铀原料。计算机：二战时，美国人急需解决飞行弹道面临的巨大计算问题，“逼”出了人类第一台电子计算机。
At the end of 1939, the U.S. government organized thousands of scientists and hundreds of thousands of workers to produce enough uranium material to produce an atomic bomb in less than a month. Computer: During World War II, the Americans urgently needed to solve the enormous computational problems confronted by the flight trajectory. They forced “out” of the first human computer.