“x-ray background”的概念、定义、翻译、参考文献-科学参考

单词	x-ray background
释义	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.
随便看	rise pit riser riser-angle indicator Polypteridae Polypteriformes polyribosome polyrod antenna polysaccharide polysaprobic polysepalous polyserositis polysiloxane polysome polysomy polysorbate polyspermy polyspore polystele Polystomatoidea Polystylifera polystyrene polystyrene capacitor polystyrene dielectric polysulfide rubber polysulfide treating

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