这个词是什么意思？
The science concerned with celestial bodies and the observation and interpretation of the radiation received in the vicinity of the earth from the component parts of the universe (McGraw Hill Dictionary of Scientific and Technical Terms, 5th ed)
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D001256 · MeSH 2026。
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