foredge造句怎么写

Step index: Divisions cut into the foredge margin of book, from top to bottom, in steps, to indicate the index letters called Cut-in index.

In printing, the space surrounding the type area, comprising head, tail, back and foredge.

Turned over: A style of the drawn-on cover in which the foredge of the front and back covers is allowed to extend for 45mm or more to make a flap. See Drawn-on cover.