 |
| conveyor belt: 39 phrases in 13 subjects |
| Agriculture | 3 |
| Chemistry | 1 |
| Coal | 1 |
| Economy | 1 |
| Forestry | 1 |
| Industry | 5 |
| Materials science | 4 |
| Mechanic engineering | 8 |
| Medical | 1 |
| Metallurgy | 8 |
| Natural sciences | 1 |
| Technology | 1 |
| Transport | 4 |
|
| conveyor belt: 39 phrases in 13 subjects |
| Agriculture | 3 |
| Chemistry | 1 |
| Coal | 1 |
| Economy | 1 |
| Forestry | 1 |
| Industry | 5 |
| Materials science | 4 |
| Mechanic engineering | 8 |
| Medical | 1 |
| Metallurgy | 8 |
| Natural sciences | 1 |
| Technology | 1 |
| Transport | 4 |