William Penney, 盖格计数器, 原子弹试验, 放射性, 辐射, 炸弹(武器), 注意到, 听, CMP, 新闻媒体, 记者, 新闻发布会, 研究员, 演示(演示), 记者, 科学家, 间(楼科), 相机, 个性, 人群, 请讲, 坐在, 历史镜头, 人(人类), 成人,

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