 |
| |||
| 基本群 | |||
| 碱性基团 | |||
| 基础基群 | |||
| 碱性基; 碱性原子团 | |||
| 基群; 碱基 | |||
| 基础群 | |||
|
basic group : 23 phrases in 12 subjects |
| Aviation | 1 |
| Business | 2 |
| Chemistry | 1 |
| Communications | 1 |
| Economics | 2 |
| Electronics | 3 |
| General | 1 |
| Information technology | 1 |
| Leather | 1 |
| Mineral processing | 1 |
| Name of organization | 3 |
| Technology | 6 |