物理学
反射图
She describes him using infrared reflectograms to see under the layers of paint, and discovering the thumb in the blessing hand and the stole Christ is wearing painted in different positions.
CNN: Decoding da Vinci: How a lost Leonardo was found
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。