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| source electrode; source pole | |||
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| source | |||
| 源极: 114 phrases in 26 subjects |
| Agriculture | 2 |
| Air defense | 2 |
| Automobiles | 2 |
| Aviation | 3 |
| Business | 1 |
| Commerce | 1 |
| Construction | 4 |
| Drilling | 1 |
| Earth sciences | 7 |
| Ecology | 2 |
| Electronics | 11 |
| Fishery fishing industry | 1 |
| General | 7 |
| Geophysics | 4 |
| Life sciences | 1 |
| Metallurgy | 7 |
| Name of organization | 1 |
| Nautical | 1 |
| Oil / petroleum | 11 |
| Radio | 2 |
| Rail transport | 1 |
| Shipbuilding | 4 |
| Space | 3 |
| Technology | 30 |
| Telecommunications | 4 |
| United States | 1 |
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