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permeability : 328 phrases in 36 subjects |
| Agriculture | 7 |
| American usage, not spelling | 1 |
| Astronomy | 1 |
| Automated equipment | 2 |
| British usage, not spelling | 1 |
| Chemistry | 2 |
| Communications | 1 |
| Construction | 23 |
| Earth sciences | 17 |
| Electronics | 22 |
| Emergency medical care | 1 |
| Environment | 2 |
| General | 17 |
| Geology | 14 |
| Geomechanics | 3 |
| Health care | 1 |
| Industry | 2 |
| Life sciences | 17 |
| Magnetics | 17 |
| Materials science | 7 |
| Measuring instruments | 3 |
| Medical | 35 |
| Medical appliances | 2 |
| Metallurgy | 11 |
| Mining | 3 |
| Natural resourses and wildlife conservation | 9 |
| Natural sciences | 2 |
| Nuclear physics | 3 |
| Packaging | 6 |
| Physics | 38 |
| Radio | 4 |
| Refrigeration | 1 |
| Soil science | 2 |
| Technology | 42 |
| Textile industry | 6 |
| Transport | 3 |