 |
| 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 |
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