| |||
multiple perforation (perforatio multipleca) | |||
gang punching | |||
gang punch; multiple punching | |||
★ multiple perforation | |||
| |||
gang punch |
复 穿 孔 : 27 phrases in 11 subjects |
Astronautics | 1 |
Business | 1 |
Computers | 2 |
Economics | 1 |
Electronics | 1 |
General | 1 |
Information technology | 2 |
Mathematics | 2 |
Metallurgy | 6 |
Oil / petroleum | 2 |
Technology | 8 |