单词：Bohr magnetron
尔磁控管
单词：Bohr magnetron 相关文章
微波炉发明源于一项最高军事机密 Many people around the world use a microwave oven every day, not knowing that a crucial part of it was once a top military secret. 世界上许多人每天都在使用微波炉,但却不了解它曾经是一
发表于:2018-12-16 / 阅读(67) / 评论(0)
VOA标准英语2016年(二月)
VOA标准英语2016年(二月)
It was while puzzling over this problem that Bohr was struck by a solution and dashed off his famous paper. Called On the Constitutions of Atoms and Molecules, the paper explained how electrons could keep from falling into the nucleus by suggesting t
发表于:2019-02-17 / 阅读(55) / 评论(0)
万物简史
万物简史