不断退火，锻打，直到割痕消失。

Repeating annealing and forging till cutting marks were gone.

youdao

从原点至无穷远处的曲线起分支割痕的作用。

Curves running from the origin to infinity may serve as branch cuts.

youdao

要小心使用剪刀、针、小刀或者其他工具，避免割伤和割痕。

Take care to avoid cuts or nicks from scissors, needles, knives or tools.

youdao

要小心使用剪刀、针、小刀或者其他工具，避免割伤和割痕。

Take care to avoid cuts or nicks from scissors, needles, knives or tools.

youdao