You may have heard the term hairline fracture. This is a single fracture that is very small, like the width of a hair.

你可能听过“骨裂”这个术语，这是一种裂缝如头发般宽的单处骨折。

youdao

This is a singal fracture that is very small like the width of hair.

这是一种单一骨折，它非常细小只有头发的宽度。

youdao

The role of atomic hydrogen and hydrogen-induced martensite in hydrogen-induced delayed fracture was very small.

而原子氢和氢致马氏体在氢致滞后断裂中所起的作用则极小。

youdao

This is a single fracture that is very small, like the width of a hair.

VOA: special.2009.02.04