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次方程 : 112 phrases in 19 subjects |
Advertising | 1 |
Agriculture | 2 |
Bridge construction | 6 |
Business | 22 |
Chemistry | 1 |
Cryptography | 2 |
Earth sciences | 2 |
Electronics | 4 |
General | 4 |
Hydroelectric power stations | 3 |
Information technology | 1 |
Mathematics | 10 |
Metallurgy | 3 |
Oil / petroleum | 7 |
Scientific | 1 |
Space | 2 |
Technology | 36 |
Telecommunications | 2 |
Wind Energy | 3 |