| |||
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 groups : 28 phrases in 13 subjects |
Aviation | 1 |
Business | 5 |
Chemistry | 1 |
Communications | 1 |
Economics | 2 |
Electronics | 3 |
General | 1 |
Information technology | 1 |
Leather | 1 |
Mineral processing | 1 |
Name of organization | 3 |
Sports | 2 |
Technology | 6 |