These quadrochromatic, in as far as possible without losing importance quadrochromatic darkened, we should make use of seihan means taking background removal method to make the darkened mlta holdout.

• 碰到这类草稿，在尽度不得草稿暗调重给性条件下，我们答诳骗制版霸术，采存底色去除办法使暗调不朱层减薄。