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| perforar; taladrar | |||
| diametro interior | |||
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forer : 30 phrases in 14 subjects |
| Chemistry | 2 |
| Coal | 11 |
| Construction | 3 |
| Earth sciences | 1 |
| Economics | 1 |
| General | 2 |
| Geology | 2 |
| Health care | 1 |
| Labor law | 1 |
| Life sciences | 1 |
| Mechanic engineering | 1 |
| Metallurgy | 1 |
| Power lines | 1 |
| Transport | 2 |