three-course
| system
| three-course | |
| gen. | 三区 的 |
| system | |
| gen. | 体 |
| IMF. | 安排 |
| leath. | 网 |
| med. | 派 |
| met. | 装置 |
| met. од. | 系 |
| tech. | 制度; 方法 |
| tech. од. | 体系; 系统 |
| |||
| 三区轮作的 | |||
|
three-course : 6 phrases in 5 subjects |
| Agriculture | 2 |
| Dietology | 1 |
| Soil science | 1 |
| Technology | 1 |
| Textile industry | 1 |