 |
| 层间 的: 81 phrases in 22 subjects |
| Agriculture | 1 |
| Animal husbandry | 1 |
| Architecture | 7 |
| Automobiles | 1 |
| Aviation | 2 |
| China | 2 |
| Drilling | 4 |
| Earth sciences | 1 |
| Economy | 2 |
| Electronics | 2 |
| Engineering geology | 5 |
| General | 19 |
| Geology | 2 |
| Geophysics | 2 |
| Metallurgy | 3 |
| Plastics | 2 |
| Refrigeration | 2 |
| Securities | 1 |
| Space | 2 |
| Technology | 14 |
| Textile industry | 2 |
| United Nations | 4 |
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