耳镜，检耳镜检查耳内部（尤其是中耳）的仪器，主要包括一个放大镜和光源 An instrument for examining the interior of the ear, especially the eardrum, consisting essentially of a magnifying lens and a light.
光分解，光解作用由光或其它光源引起的化学分解 Chemical decomposition induced by light or other radiant energy.
