铆钉，管状，已经有一节，显然是小于一个坚固的铆钉。

The rivet, being tubular, has a section that is obviously smaller than that of a solid rivet.

youdao

铆钉，管状，已经有一节，显然是小于一个坚固的铆钉。

The rivet, being tubular, has a section that is obviously smaller than that of a solid rivet.

youdao