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交流管 : 26 phrases in 14 subjects |
Advertising | 1 |
Air defense | 1 |
Automobiles | 2 |
Aviation | 7 |
Electric machinery | 2 |
Electronics | 2 |
Finances | 1 |
General | 1 |
Metallurgy | 1 |
Name of organization | 1 |
Radio | 1 |
Semiconductors | 1 |
Technology | 4 |
Wind Energy | 1 |