 |
| |||
| perforations | |||
| |||
| perforation; perforated hole | |||
| perforation (of a film) | |||
| liquid-liquid extraction | |||
| puncture | |||
| punching; sprocket hole | |||
| perforation (z. B. zur Verbesserung der Fließbedingungen von Erdölbohrlöchern) | |||
| perforation | |||
| puncturing | |||
| |||
| perforation | |||
|
Perforationen : 11 短语, 6 学科 |
| 光学（物理学分支） | 1 |
| 冶金 | 1 |
| 医疗的 | 4 |
| 建造 | 2 |
| 技术 | 1 |
| 通讯 | 2 |