drawbore的中文意思、音标与词形变化

钻[笋]销孔

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.