- ?Lv 61 decade agoFavorite Answer
輥花的英文是 knurl，所以輥花上座可以翻作 knurled upper base.
Two examples of the use of knurling in hand tools.Knurling is a manufacturing process, typically conducted on a lathe, whereby a visually-attractive diamond-shaped (criss-cross) pattern is cut or rolled into metal. This pattern allows human hands or fingers to get a better grip on the knurled object than would be provided by the originally-smooth metal surface. Occasionally, the knurled pattern is a series of straight ridges or a helix of "straight" ridges rather than the more-usual criss-cross pattern.Source(s): 參考看看唄