drawbore
/d'rɔ:bɔ:/
📖 中文释义
- 钻[笋]销孔
📘 English Definition(英文释义)
- n. A hole bored through a tenon nearer to the shoulder than
- the holes through the cheeks are to the edge or abutment against which
- the shoulder is to rest, so that a pin or bolt, when driven into it,
- will draw these parts together.
- v. t. To make a drawbore in; as, to drawbore a tenon.
- v. t. To enlarge the bore of a gun barrel by drawing,
- instead of thrusting, a revolving tool through it.