 |
| 闸阀: 143 phrases in 21 subjects |
| Agriculture | 1 |
| Aviation | 1 |
| Compressors | 3 |
| Drilling | 4 |
| Earth sciences | 1 |
| Ecology | 3 |
| Electronics | 8 |
| General | 3 |
| Hydroelectric power stations | 11 |
| Industry | 1 |
| Mechanic engineering | 1 |
| Mechanics | 3 |
| Metallurgy | 14 |
| Nautical | 3 |
| Oil / petroleum | 17 |
| Oil processing plants | 2 |
| Plastics | 3 |
| Rail transport | 1 |
| Shipbuilding | 7 |
| Technology | 55 |
| Water resources | 1 |