英语词汇“X-ray nova”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	X-ray nova
释义	X-ray nova Astronomy noun A celestial object that is a very strong but transient emitter of X-rays, typically a binary system with either a neutron star or a black hole as the receptor (rather than a white dwarf as in an ordinary nova). Origin 1960s; earliest use found in Science News.
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X-ray nova