 |
| 防护的: 117 phrases in 30 subjects |
| Agriculture | 5 |
| Architecture | 3 |
| Automobiles | 3 |
| Aviation | 10 |
| Bridge construction | 1 |
| China | 1 |
| Commerce | 1 |
| Dentistry | 1 |
| Desert science | 1 |
| Drilling | 2 |
| Economy | 1 |
| Electronics | 6 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Finances | 1 |
| General | 20 |
| Geology | 1 |
| Hydroelectric power stations | 4 |
| Metallurgy | 2 |
| Nautical | 1 |
| Navigation | 1 |
| Oil / petroleum | 1 |
| Polymers | 1 |
| Rail transport | 1 |
| Refrigeration | 1 |
| Space | 5 |
| Sports | 1 |
| Technology | 31 |
| Telecommunications | 2 |
| Textile industry | 2 |
| United Nations | 5 |