母 管 : 79 phrases in 15 subjects |
Business | 1 |
Chemistry | 1 |
Computer networks | 1 |
Construction | 1 |
Drilling | 1 |
Electronics | 30 |
Food service and catering | 1 |
General | 16 |
Law | 1 |
Medical | 6 |
Nuclear and fusion power | 1 |
Oil processing plants | 1 |
Technology | 15 |
Weapons and gunsmithing | 1 |
Zoology | 2 |