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| presión de agua | |||
| columna de agua | |||
| pression d 'eau: 24 phrases in 13 subjects |
| Agriculture | 2 |
| Chemistry | 1 |
| Coal | 1 |
| Communications | 1 |
| Earth sciences | 2 |
| Electronics | 2 |
| Environment | 1 |
| General | 1 |
| Materials science | 1 |
| Measuring instruments | 1 |
| Mechanic engineering | 2 |
| Technology | 2 |
| Transport | 7 |