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模砂 : 62 phrases in 10 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Earth sciences | 3 |
| Electronics | 3 |
| Engineering geology | 1 |
| Geology | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 9 |
| Oil / petroleum | 8 |
| Technology | 34 |
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