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examiner | |||
lookout; lookout observer; lookout station | |||
observer | |||
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observer |
观测员: 29 phrases in 11 subjects |
Air defense | 2 |
Animal husbandry | 1 |
Aviation | 3 |
Desert science | 1 |
Earth sciences | 7 |
General | 3 |
Geophysics | 1 |
Space | 1 |
Technology | 8 |
United Kingdom | 1 |
United Nations | 1 |