Also called Anti - halation backing , Anti - halo layer .亦称防光晕 背层....

halation的音标：halation的英式发音音标为：[hə'leɪʃən]halation的美式发音音标为：[hə'leɪʃən]...

n.照相底片上显现的光轮状晕，晕光，白色模糊影像，充晕...