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X射线波带片
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X射线波带片
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X射线波带片
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X-ray zone plate
X射线波带片
基于衍射效应的微结构X射线光学器件。X射线波带片的微结构使相位相同的光线聚焦于一点,而到达波带片焦点的各条光线经历不同的光程,光程差为波长的整数倍。X射线波带片具有多级焦点特点,既能聚焦,也能成像。
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Journalism and Communication Institute of Tsinghua University
Journalism and Mass Communication Monthly
Journalism and Mass Communication Quarterly
Journalism and Photography of Beijing Film School
journalism and propaganda
journalism and public opinion
journalism code of ethics
Journalism & Communication
Journalism criticism
journalism ethics
Journalism Ethics Committee of China Journalists Association
journalism history
journalism in Africa
journalism in Albania
journalism in Argentina
journalism in Asia
journalism in Australian
journalism in Bangladesh
journalism in Brazil
journalism in Bulgaria
journalism in Canada
journalism in Democratic People's Republic of Korea
journalism in Denmark
journalism in Egypt
journalism in Europe
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