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| diagram on the plane of the celestial equator; diagram on the plane of the equinoctial; time diagram | |||
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时系图 : 27 phrases in 12 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Earth sciences | 2 |
| Electronics | 7 |
| Explosives and Explosive Ordnance Disposal | 2 |
| General | 2 |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Space | 1 |
| Technology | 5 |
| Telecommunications | 1 |
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