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螺线 管 : 105 phrases in 20 subjects |
| Agriculture | 1 |
| Air defense | 1 |
| Antennas and waveguides | 1 |
| Automobiles | 3 |
| Aviation | 1 |
| Construction | 1 |
| Ecology | 1 |
| Electric machinery | 6 |
| Electronics | 12 |
| General | 4 |
| Genetics | 3 |
| Information technology | 2 |
| Metallurgy | 9 |
| Oil / petroleum | 5 |
| Plastics | 2 |
| Reproductive biology | 1 |
| Space | 1 |
| Steel production | 2 |
| Technology | 47 |
| Wind Energy | 2 |
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