例文
- Hand bookbinders use a variety of specialized hand tools, the most emblematic of which is the bonefolder, a flat, tapered, polished piece of bone used to crease paper and apply pressure.
- A "'bone folder "', "'bonefolder "', or "'folding bone "'is a dull-edged hand tool used to fold and crease material in crafts such as bookbinding, cardmaking, origami, and other paper crafts that require a sharp crease or fold.
