Knurl

(n.) A contorted knot in wood; a crossgrained protuberance; a nodule; a boss or projection.

(n.) One who, or that which, is crossgrained.

(v. t.) To provide with ridges, to assist the grasp, as in the edge of a flat knob, or coin; to mill.

校对:弗恩

• Thou wilt do that with a Mauser sometime which has no knurl on the bolt and it will fire. 欧内斯特·海明威. 丧钟为谁而鸣.

乔琳整理