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单词 X-ray astronomy
释义 X-ray astronomy
The study of X-ray sources by rockets and balloons in the earth's atmosphere and by satellites beyond it. The first nonsolar X-ray source was detected during a rocket flight in 1962, and this observation heralded an entirely new branch of astronomy which developed rapidly with the availability of satellites in the 1970s
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更新时间:2025/6/23 6:47:50