ABEC
美
英 
- 网络Annular Bearing Engineer Committee; 环形轴承工程师委员会(Annular Bearing Engineers Committee)
例句
As PA9 but running accuracy better than ABMA tolerance class ABEC 9.
与PA9相同,但旋转精度超过ABMA公差级ABEC9级。
Dimensional and running accuracy to ABMA tolerance class ABEC 9 (better than P4)
尺寸和旋转精度符合ABMA公差级ABEC9级(超过P4)