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菱面形 : 30 phrases in 10 subjects |
| Architecture | 1 |
| Aviation | 1 |
| Desert science | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 4 |
| Metallurgy | 3 |
| Oil / petroleum | 4 |
| Polymers | 1 |
| Technology | 13 |
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