英语词汇“x-ray astronomy”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 astronomy
释义	x-ray astronomy —x-ray astronomer. the branch of astronomy that studies celestial objects by means of the x-rays emitted by them. Cf. x-ray (def. 1b). [1960-65]
随便看	pregranite pregranitic pregratification pregratify pre-Greek pregreet pregrievance pregrowth preguarantee preguarantor preguard preguess preguidance preguide preguilt pre-Han prehandicap prehandle preharden preharmonious preharmony preharvest prehatred prehazard preheal

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