短語(yǔ)詞組短語(yǔ)refraction index profile 折射率分佈relative refraction index 相對(duì)折射率step -refraction index 堦躍折射率d refraction index field 三維流場(chǎng)gradient refraction index 梯度折射率refraction index modulation 調(diào)制折射率atmosphere refraction index 大氣折射率medium refraction index 介質(zhì)折射率negative refraction index 折射率 返回 refraction index