1)additional perturbation,附加摄动2)additional perturbation,[天]附加摄动3)additional perturbation,附加摄动(天)4)Additional perturbation due to the change of coordinate system,坐标系附加摄动5)microscope adaptor with auto lris for camera,摄象机用带自动光圈显微镜附加器6)camera adaptor,摄象机附加器