black plate separation negative黑版阴像分色底片
color separation negative分色阴片;分色底片
three separation negative三色分色负片
halftone separation negative加网分色阴图片
colour separation negative分色底片
separation negative detail分色负片
plate separation negative黑版阴像分色底片
negative separation负幅度差
color negative separation彩色阴图片直接分色法