1818年菲涅耳参加了法国科学院主办的一次竞赛.In 1818 Fresnel entered a competition sponsored by French Academy.菲涅耳通过加进来干涉概念,解决了这个困难.The difficulty was resolved by Fresnel with his addition of the concept of interference.在许多情况下, 对于我们的目的来说,更简单...