英语词源
- knurl (n.)
- "hard excrescence," c. 1600, probably a diminutive of Middle English knor "knot" (c. 1400), related to gnarled, from Proto-Germanic *knur- (cognates: German knorren "a knotty excrescence"). Related: Knurly.
权威例句
- 1. There are lots of advantages by cold extrusion for straight knurl nut in a single process.
- 直纹滚花螺母采用冷挤压一次成形新工艺,成效显著.