本发明是一种结构简单，设计科学合理的气动打眼机。

The machine is an aerodynamic punching machine with simple structure and scientific design.

youdao

还有一个在纸上可以打眼儿的打眼儿机。

There's also a hole punch to make holes in paper.

youdao

还有一个在纸上可以打眼儿的打眼儿机。

There's also a hole punch to make holes in paper.

youdao