防 化学 : 153 phrases in 14 subjects |
Agriculture | 1 |
Aviation | 7 |
Education | 1 |
Electronics | 2 |
Environment | 1 |
Food industry | 1 |
General | 62 |
Historical | 1 |
Medical | 2 |
Military | 40 |
Name of organization | 2 |
Oil processing plants | 1 |
Technology | 30 |
United Nations | 2 |