 |
| |||
| spudder | |||
| borer | |||
| bit core; first bit; integral pilot (fest mit der Hauptbohrkrone verbunden); pilot bit; trial bit | |||
| |||
| pilot drill-bit | |||
| |||
| to pre-drill | |||
| hole (Schieferplatte) | |||
| prebore; predrill; rough-bore; rough-drill | |||
| |||
| predrill; rough drilling | |||
| pilot drilling; pre-drilling | |||
| pre-drill | |||
|
Vorbohrer : 3 短语, 2 学科 |
| 医疗器械 | 2 |
| 矿业 | 1 |