“blue ground”的概念、定义、翻译、参考文献-科学参考

单词	blue ground
释义	blue ground [¦blü ´grau̇nd] ^GEOLOGY 1. The decomposed peridotite or kimberlite that carries the diamonds in the South African mines. 2. Strata of the coal measures, consisting principally of beds of hard clay or shale.
随便看	sand-cast sand cay sand cone sand control 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

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