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| máquina con sobrepresión interna | |||
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pressurised : 35 phrases in 14 subjects |
| Chemistry | 1 |
| Coal | 2 |
| Commerce | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| Environment | 1 |
| General | 8 |
| Health care | 2 |
| Industry | 3 |
| Mechanic engineering | 5 |
| Metallurgy | 1 |
| Natural sciences | 1 |
| Nuclear physics | 4 |
| Transport | 4 |