 |
| 管箍: 174 phrases in 24 subjects |
| Architecture | 3 |
| Automobiles | 4 |
| Aviation | 1 |
| Compressors | 3 |
| Drilling | 29 |
| Earth sciences | 1 |
| Ecology | 2 |
| Electronics | 1 |
| Engineering geology | 6 |
| General | 1 |
| Geophysics | 18 |
| Hydraulics | 1 |
| Hydroelectric power stations | 5 |
| Mechanics | 4 |
| Metallurgy | 7 |
| Nautical | 1 |
| Oil / petroleum | 32 |
| Plastics | 1 |
| Shipbuilding | 2 |
| Steel production | 1 |
| Technology | 48 |
| Textile industry | 1 |
| Transport | 1 |
| Water resources | 1 |
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