“opaque medium”的概念、定义、翻译、参考文献-科学参考

单词	opaque medium
释义	opaque medium [ō`pāk ´mēd·ē·ǝm] ^OPTICS A medium impervious to rays of light, that is, not transparent to the human eye. ^PHYSICS 1. A medium which does not transmit electromagnetic radiation of a specified type, such as that in the infrared, x-ray, ultraviolet, and microwave regions. 2. A medium which prevents the passage of particles of a specified type.
随便看	sand count sand crystal sand devil sand dike sand dollar sand drain sand drift sand drip sand dune sander sandfall sand filter spherical distance spherical-earth attenuation spherical-earth factor spherical excess spherical geometry spherical harmonics spherical indicatrix of binormal to a curve spherical indicatrix of tangent to a curve spherical lens spherical mirror spherical pendulum spherical polar coordinates spherical polygon

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