2 . 06 87 2 v 2 [ gr-q c ] 8 M ar 2 01 8 Covariant electrodynamics in linear media : Optical metricRobert T. Thompsonsemanticscholar(2018)引用 0|浏览0AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要