spectral mirror spherical mirror 基本例句 球面镜 Seeing himself in the spherical mirror, he roared with laughter.面对着球面镜里的自己，他哈哈大笑起来。 Some important theoretical issues of catadioptric omnidirectional systems for the spherical mirror are researched.摘要对球面镜折反射全向视觉系统的某些理论问题进行了研究。