单词 | x-radiation |
释义 | DEFINITIVE EXAMPLES 权威例句〔x-ray burster〕Any of several celestial phenomena characterized by the emission of very powerful bursts of x-radiation in cycles lasting from a few seconds to a few minutes.X射线爆发源:在几秒或几分钟之内爆发出环状X射线的一种天体现象美国传统 |
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