|
persistance : 33 phrases in 16 subjects |
| Agriculture | 3 |
| Animal husbandry | 1 |
| Antennas and waveguides | 2 |
| Chemistry | 1 |
| Climatology | 1 |
| Communications | 1 |
| Economics | 1 |
| Electronics | 4 |
| Environment | 1 |
| Law | 1 |
| Life sciences | 2 |
| Lighting other than cinema | 1 |
| Medical | 7 |
| Microsoft | 5 |
| Pest control | 1 |
| Textile industry | 1 |