The high energy radiation mechanism research of active galactic nuclei is a key to understanding their structure, evolution features and origin of central drive.
活动星系核的高能辐射机制研究对于揭示其结构和演化特征以及中央驱动之谜具有极其重要的意义。
The origin of continental nuclei has long been a puzzle.
大陆架的起源一直以来是一个谜团。
The origin of continental nuclei has long been a puzzle.
大陆架的起源一直以来是一个谜团。
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