|
percer : 29 phrases in 14 subjects |
| Agriculture | 1 |
| Animal husbandry | 3 |
| Chemistry | 1 |
| Coal | 1 |
| Communications | 1 |
| Earth sciences | 2 |
| Fish farming pisciculture | 1 |
| General | 1 |
| Industry | 1 |
| Mechanic engineering | 8 |
| Metallurgy | 1 |
| Natural resourses and wildlife conservation | 2 |
| Natural sciences | 2 |
| Transport | 4 |