单词	貨幣石
释义	貨幣石1. nummulite
随便看	refraction index--index of refraction refraction index profile refraction interpretation refraction,ionic refraction law refraction loss refraction marker refraction method refraction of light refraction (of neutron beam) refraction of sound refraction of water waves refraction of wave refraction of wave-- refraction wave--refracted wave refraction of x-ray refractionometer refractionometry refraction path refraction power refraction process refraction profile refraction record refractions refraction second arrival refraction set