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| model material; model sand | |||
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模型砂 : 18 phrases in 9 subjects |
| Automobiles | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Geology | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 6 |
| Technology | 5 |
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