| |||
轮作制 | |||
轮作制度 | |||
轮转配合打法; 双打轮转配合打法 | |||
旋转系统 |
rotation system : 38 phrases in 11 subjects |
Agriculture | 22 |
Animal husbandry | 1 |
Aviation | 1 |
Business | 3 |
Corporate governance | 1 |
Desert science | 1 |
Economics | 1 |
Plastics | 2 |
Soil science | 1 |
Space | 2 |
Technology | 3 |