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参考 物 : 27 phrases in 15 subjects |
Aviation | 3 |
Biotechnology | 1 |
Chemistry | 1 |
Fishery fishing industry | 2 |
General | 1 |
Geophysics | 1 |
Librarianship | 3 |
Metallurgy | 1 |
Space | 1 |
Statistics | 2 |
Technology | 3 |
Telecommunications | 2 |
United States | 1 |
Video recording | 1 |
Water resources | 4 |