 |
| 收集器: 301 phrase in 37 subjects |
| Agriculture | 17 |
| Animal husbandry | 7 |
| Architecture | 1 |
| Automobiles | 13 |
| Aviation | 14 |
| Biology | 1 |
| Business | 2 |
| Chemistry | 2 |
| Compressors | 1 |
| Computers | 1 |
| Construction | 6 |
| Desert science | 1 |
| Earth sciences | 7 |
| Ecology | 7 |
| Electronics | 19 |
| Energy industry | 2 |
| Engineering geology | 3 |
| Forestry | 1 |
| General | 8 |
| Information technology | 1 |
| Mathematics | 1 |
| Metallurgy | 4 |
| Mining | 1 |
| Nautical | 3 |
| Oil / petroleum | 7 |
| Plastics | 2 |
| Polymers | 1 |
| Pulp and paper industry | 1 |
| Rail transport | 1 |
| Refrigeration | 3 |
| Reproductive biology | 1 |
| Space | 18 |
| Steel production | 1 |
| Technology | 139 |
| Textile industry | 2 |
| Transport | 1 |
| Wind Energy | 1 |