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cross reference |
相对照 : 27 phrases in 13 subjects |
Agriculture | 3 |
Aviation | 2 |
Construction | 1 |
Desert science | 1 |
Earth sciences | 1 |
Electronics | 1 |
General | 3 |
Metallurgy | 3 |
Oil / petroleum | 2 |
Space | 3 |
Technology | 4 |
Telecommunications | 2 |
United Nations | 1 |