1) machining marks
机加工刻痕
2) scratch machine
刻痕机
3) machining mark
机械加工痕迹
4) hand incisor
手工刻痕器
5) engraving machine, for working metal
金属加工雕刻机
6) cutting marks
加工刀痕
1.
Through failure analysis of a fractured tubing in Daqing oil fields, we have concluded that it is a fatigue fracture of the tubing, and what led to the cracks in the bottom of the tubing threads is the original cutting marks.
油管螺纹齿底的原始加工刀痕是造成裂纹萌生的主要原因，萌生的裂纹在油管承受的拉－拉脉动载菏作用下发生疲劳扩展，最后导致油管断裂失效。
补充资料：痕痕
1.犹言一道道。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条