英语词汇“x-ray background”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 background
释义	x-ray background x-ray background [′eks ‚rā ′bak‚grau̇nd] (astronomy) Diffuse, almost isotropic x-radiation from beyond the solar system, believed to be the summed contribution of many unresolved sources. See XRB See XRB
随便看	optic nerve swelling optic neuritis optic neuritis treatment trial optic neuropathy optic normal optico- opticoacoustic nerve atrophy with dementia opticociliary opticokinetic opticokinetic nystagmus opticomm opticonasion opticopupillary optic pachymeter optic papilla optic part of retina optic pathway optic pathway/hypothalamic gliomas optic pit optic placodes optic primordia orthoquartzitic sandstone orthoradiogram orthoradioscopy orthorectified radar image

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。