 |
| |||
| cut-over-land tillage; slash-and-burn system of agriculture | |||
| slash-and-burn system of agriculture | |||
| подсечная система земледелия: 4 短语, 2 学科 |
| 农业 | 3 |
| 生态 | 1 |
|
| |||
| cut-over-land tillage; slash-and-burn system of agriculture | |||
| slash-and-burn system of agriculture | |||
| подсечная система земледелия: 4 短语, 2 学科 |
| 农业 | 3 |
| 生态 | 1 |