- the branch of astronomy concerned with the detection and measurement of X-rays emitted by certain celestial bodies. As X-rays are absorbed by the atmosphere, satellites and rockets are used
| 单词 | x-ray astronomy |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 x′-ray astron′omy,
Collins Concise English Dictionary © HarperCollins Publishers:: X-ray astronomy n
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