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technical classification | |||
classification of technology |
技 术分类 : 18 phrases in 11 subjects |
Agriculture | 1 |
Aviation | 1 |
Bridge construction | 1 |
Business | 1 |
Commerce | 1 |
Earth sciences | 1 |
Electronics | 1 |
General | 2 |
International trade | 1 |
Statistics | 6 |
Technology | 2 |