| |||
| 三磁场的; 三区轮作的 | |||
|
three-field : 24 phrases in 12 subjects |
| Agriculture | 4 |
| Animal husbandry | 2 |
| Basketball | 2 |
| Business | 2 |
| Desert science | 2 |
| Economics | 1 |
| Electric machinery | 1 |
| Ethnology | 1 |
| Geography | 2 |
| Metallurgy | 4 |
| Soil science | 1 |
| Technology | 2 |
| |||
| 三磁场的; 三区轮作的 | |||
|
three-field : 24 phrases in 12 subjects |
| Agriculture | 4 |
| Animal husbandry | 2 |
| Basketball | 2 |
| Business | 2 |
| Desert science | 2 |
| Economics | 1 |
| Electric machinery | 1 |
| Ethnology | 1 |
| Geography | 2 |
| Metallurgy | 4 |
| Soil science | 1 |
| Technology | 2 |